The Meaning of Acts 1:15 Explained

Acts 1:15

KJV: And in those days Peter stood up in the midst of the disciples, and said, (the number of names together were about an hundred and twenty,)

YLT: And in these days, Peter having risen up in the midst of the disciples, said, (the multitude also of the names at the same place was, as it were, an hundred and twenty,)

Darby: And in those days Peter, standing up in the midst of the brethren, said, (the crowd of names who were together was about a hundred and twenty,)

ASV: And in these days Peter stood up in the midst of the brethren, and said (and there was a multitude of persons gathered together, about a hundred and twenty),

KJV Reverse Interlinear

And  in  those  days  Peter  stood up  in  the midst  of the disciples,  and said,  (the number  of names  together  were  about  an hundred  and twenty,  ) 

What does Acts 1:15 Mean?

Verse Meaning

In view of Peter"s leadership gifts, so obvious in the Gospels, it is no surprise that he is the one who took the initiative on this occasion.
"Undoubtedly, the key disciple in Luke"s writings is Peter. He was the representative disciple, as well as the leading apostle. [1]
"Brethren" is literally "disciples" (Gr. matheton). The group of120 that Peter addressed on this occasion (cf. Acts 1:13-14) was only a segment of the believers living in Jerusalem at this time (cf. 1 Corinthians 15:6, which refers to more than500 brethren). Nonetheless this was a tiny group from which the church grew. God can take a small number of people, multiply them, and eventually fill the earth with their witness.

Context Summary

Acts 1:15-26 - Filling A Vacant Place
It may be that the Apostles were acting upon Christ's directions, when they proceeded to the election of a successor to Judas. There was awe in Peter's voice, as he describes the traitor as the guide of the arresting band, although he had been numbered with the Apostles and had obtained part in their ministry. It was as though Peter felt that it might have been himself. He and the rest had stood at the brink of the precipice over which Judas had flung himself.
Evidently there were favored and humble men who, though they did not belong to the brotherhood, had been allowed to company with the Apostles, and had been witnesses of the marvelous story as it had been unrolled before their eyes. They were thus able to give their testimony first-hand. What an honor had been theirs! And now one of them was summoned to take the place of Judas. His qualification was his ability to bear witness to the Resurrection, Acts 1:22. That was the salient point in the primitive evangel. But cannot we all bear witness to it? What but the resurrection of Jesus can account for the hot springs of religious fervor that arise in our wintry hearts! [source]

Chapter Summary: Acts 1

1  Christ, preparing his apostles to the beholding of his ascension,
4  gathers them together unto the Mount of Olives,
6  commands them to expect in Jerusalem the sending down of the Holy Spirit,
9  and ascends into heaven in their sight
10  After his ascension they are warned by two angels to depart, and to set their minds upon his second coming
12  They accordingly return, and, giving themselves to prayer,
23  choose Matthias apostle in the place of Judas

Greek Commentary for Acts 1:15

Brethren [αδελπων]
Codex Bezae has “disciples.” [source]
Multitude of persons [οχλος ονοματων]
Literally, multitude of names. This Hebraistic use of ονομα — onoma = person occurs in the lxx (Numbers 1:2; 18:20; 3:40, 43; 26:53) and in Revelation 3:4; Revelation 11:13. Together (επι το αυτο — epi to auto). The word “gathered” is not in the Greek here, but it does occur in Matthew 22:34 and that is undoubtedly the idea in Luke 17:35 as in Acts 2:1, Acts 2:44, Acts 2:47; 1 Corinthians 11:20; 1 Corinthians 14:23. So also here. They were in the same place (το αυτο — to auto). About a hundred and twenty A crowd for “the upper room.” No special significance in the number 120, just the number there. [source]
Together [επι το αυτο]
The word “gathered” is not in the Greek here, but it does occur in Matthew 22:34 and that is undoubtedly the idea in Luke 17:35 as in Acts 2:1, Acts 2:44, Acts 2:47; 1 Corinthians 11:20; 1 Corinthians 14:23. So also here. They were in the same place (το αυτο — to auto). [source]
About a hundred and twenty [ως εκατον εικοσι]
A crowd for “the upper room.” No special significance in the number 120, just the number there. [source]
Of the disciples [τῶν μαθητῶν]
The best texts read ἀδελφῶν , brethren. [source]
The number of the names together were about, etc. [ἦν τε ὄχλος ὀνομάτων ἐπὶ τὸ αὐτὸ]
Much better as Rev., and there was a multitude of persons gathered together, about, etc. Ὄχλος , multitude, would not be used of a number about to be stated. [source]

Reverse Greek Commentary Search for Acts 1:15

Matthew 16:18 Thou art Peter [οὺ εἶ Πέτρος]
Christ responds to Peter's emphatic thou with another, equally emphatic. Peter says, “Thou art the Christ.” Christ replies, “Thou art Peter.” Πέτρος (Peter ) is used as a proper name, but without losing its meaning as a common noun. The name was bestowed on Simon at his first interview with Jesus (John 1:42) under the form of its Aramaic equivalent, CephasIn this passage attention is called, not to the giving of the name, but to its meaning. In classical Greek the word means a piece of rock, as in Homer, of Ajax throwing a stone at Hector (“Iliadvii., 270), or of Patroclus grasping and hiding in his hand a jagged stone (“Iliadxvi., 784).On this rock ( ἐπὶ ταύτῃ τῇ πέρᾳ )The word is feminine, and means a rock, as distinguished from a stone or a fragment of rock ( πέτρος , above). Used of a ledge of rocks or a rocky peak. In Homer (“Odyssey,” ix., 243), the rock ( πέτρην ) which Polyphemus places at the door of his cavern, is a mass which two-and-twenty wagons could not remove; and the rock which he hurled at the retreating ships of Ulysses, created by its fall a wave in the sea which drove the ships back toward the land (“Odyssey,” ix., 484). The word refers neither to Christ as a rock, distinguished from Simon, a stone, nor to Peter's confession, but to Peter himself, in a sense defined by his previous confession, and as enlightened by the “Father in Heaven.” The reference of πέτρα to Christ is forced and unnatural. The obvious reference of the word is to Peter. The emphatic this naturally refers to the nearest antecedent; and besides, the metaphor is thus weakened, since Christ appears here, not as the foundation, but as the architect: “On this rock will I build.” Again, Christ is the great foundation, the “chief corner-stone,” but the New Testament writers recognize no impropriety in applying to the members of Christ's church certain terms which are applied to him. For instance, Peter himself (1 Peter 2:4), calls Christ a living stone, and, in 1 Peter 2:5, addresses the church as living stones. In Revelation 21:14, the names of the twelve apostles appear in the twelve foundation-stones of the heavenly city; and in Ephesians 2:20, it is said, “Ye are built upon the foundation of the apostles and prophets (i.e., laid by the apostles and prophets), Jesus Christ himself being the chief corner-stone.” Equally untenable is the explanation which refers πέτρα to Simon's confession. Both the play upon the words and the natural reading of the passage are against it, and besides, it does not conform to the fact, since the church is built, not on confessions, but on confessors - living men. “The word πέτρα ,” says Edersheim, “was used in the same sense in Rabbinic language. According to the Rabbins, when God was about to build his world, he could not rear it on the generation of Enos, nor on that of the flood, who brought destruction upon the world; but when he beheld that Abraham would arise in the future, he said' 'Behold, I have found a rock to build on it, and to found the world,' whence, also, Abraham is called a rock, as it is said' 'Look unto the rock whence ye are hewn.' The parallel between Abraham and Peter might be carried even further. If, from a misunderstanding of the Lord's promise to Peter, later Christian legend represented the apostle as sitting at the gate of heaven, Jewish legend represents Abraham as sitting at the gate of Gehenna, so as to prevent all who had the seal of circumcision from falling into its abyss” (“Life and Times of Jesus”). The reference to Simon himself is confirmed by the actual relation of Peter to the early church, to the Jewish portion of which he was a foundation-stone. See Acts, Acts 1:15; Acts 2:14, Acts 2:37; Acts 3:12; Acts 4:8; Acts 5:15, Acts 5:29; Acts 9:34, Acts 9:40; Acts 10:25, Acts 10:26; Galatians 1:15.Church ( ἐκκλησίαν ) ἐκ out, καλέω , to call or summon. This is the first occurrence of this word in the New Testament. Originally an assembly of citizens, regularly summoned. So in New Testament, Acts 19:39. The Septuagint uses the word for the congregation of Israel, either as summoned for a definite purpose (Acts 7:38); but for this there is more commonly employed συναγωγή , of which synagogue is a transcription; σύν , together, ἄγω , to bring (Acts 13:43). In Christ's words to Peter the word ἐκκλησία acquires special emphasis from the opposition implied in it to the synagogue. The Christian community in the midst of Israel would be designated as ἐκκλησία , without being confounded with the συναγωγή , the Jewish community. See Acts 5:11; Acts 8:1; Acts 12:1; Acts 14:23, Acts 14:27, etc. Nevertheless συναγωγή is applied to a Christian assembly in James 2:2, while ἐπισυναγωγή (gathering or assembling together ) is found in 2 Thessalonians 2:1; Hebrews 10:25. Both in Hebrew and in New Testament usage ἐκκλησία implies more than a collective or national unity; rather a community based on a special religious idea and established in a special way. In the New Testament the term is used also in the narrower sense of a single church, or a church confined to a particular place. So of the church in the house of Aquila and Priscilla (Romans 16:5); the church at Corinth, the churches in Judea, the church at Jerusalem, etc.Gates of hell ( πύλαι ᾅδου )Rev., Hades. Hades was originally the name of the god who presided over the realm of the dead - Pluto or Dis. Hence the phrase, house of Hades. It is derived from ἀ , not, and; ἰδεῖν , to see; and signifies, therefore, the invisible land, the realm of shadow. It is the place to which all who depart this life descend, without reference to their moral character. By this word the Septuagint translated the Hebrew Sheol, which has a similar general meaning. The classical Hades embraced both good and bad men, though divided into Elysium, the abode of the virtuous, and Tartarus, the abode of the wicked. In these particulars it corresponds substantially with Sheol; both the godly and the wicked being represented as gathered into the latter. See Genesis 42:38; Psalm 9:17; Psalm 139:8; Isaiah 14:9; Isaiah 57:2; Ezekiel 32:27; Hosea 13:14. Hades and Sheol were alike conceived as a definite place, lower than the world. The passage of both good and bad into it was regarded as a descent. The Hebrew conception is that of a place of darkness; a cheerless home of a dull, joyless, shadowy life. See Psalm 6:5; Psalm 94:17; Psalm 115:17; Psalm 88:5, Psalm 88:6, Psalm 88:10; Job 10:21; Job 3:17-19; Job 14:10, Job 14:11; Ecclesiastes 9:5. Vagueness is its characteristic. In this the Hebrew's faith appears bare in contrast with that of the Greek and Roman. The pagan poets gave the popular mind definite pictures of Tartarus and Elysium; of Styx and Acheron; of happy plains where dead heroes held high discourse, and of black abysses where offenders underwent strange and ingenious tortures. There was, indeed, this difference between the Hebrew and the Pagan conceptions; that to the Pagan, Hades was the final home of its tenants, while Sheol was a temporary condition. Hence the patriarchs are described (Hebrews 11:16) as looking for a better, heavenly country; and the martyrs as enduring in hope of “a better resurrection.” Prophecy declared that the dead should arise and sing, when Sheol itself should be destroyed and its inmates brought forth, some to everlasting life, and others to shame and contempt (Isaiah 26:19; Hosea 13:14; Daniel 12:2). Paul represents this promise as made to the fathers by God, and as the hope of his countrymen (Acts 26:7). God was the God of the dead as well as of the living; present in the dark chambers of Sheol as well as in heaven (Psalm 139:8; Psalm 16:10). This is the underlying thought of that most touching and pathetic utterance of Job (Job 14:13-15), in which he breathes the wish that God would hide him with loving care in Hades, as a place of temporary concealment, where he will wait patiently, standing like a sentinel at his post, awaiting the divine voice calling him to a new and happier life. This, too, is the thought of the familiar and much-disputed passage, Job 19:23-27. His Redeemer, vindicator, avenger, shall arise after he shall have passed through the shadowy realm of Sheol. “A judgment in Hades, in which the judge will show himself his friend, in which all the tangled skein of his life will be unravelled by wise and kindly hands, and the insoluble problem of his strange and self-contradicting experience will at last be solved - this is what Job still looks for on that happy day when he shall see God for himself, and find his Goel (vindicator) in that Almighty Deliverer” (Cox, “Commentary on the Book of Job”). In the New Testament, Hades is the realm of the dead. It cannot be successfully maintained that it is, in particular, the place for sinners (so Cremer, “Biblico-Theological Lexicon”). The words about Capernaum (Matthew 11:23), which it is surprising to find Cremer citing in support of this position, are merely a rhetorical expression of a fall from the height of earthly glory to the deepest degradation, and have no more bearing upon the moral character of Hades than the words of Zophar (Job 11:7, Job 11:8) about the perfection of the Almighty. “It is high as heaven - deeper than Sheol. ” Hades is indeed coupled with Death (Revelation 1:18; Revelation 6:8; Revelation 20:13, Revelation 20:14), but the association is natural, and indeed inevitable, apart from all moral distinctions. Death would naturally be followed by Hades in any case. In Revelation 20:13, Revelation 20:14, the general judgment is predicted, and not only Death and Hades, but the sea give tip their dead, and only those who are not written in the book of life are cast into the lake of fire (Revelation 20:15). The rich man was in Hades (Luke 16:23), and in torments, but Lazarus was also in Hades, “in Abraham's bosom.” The details of this story “evidently represent the views current at the time among the Jews. According to them, the Garden of Eden and the Tree of Life were the abode of the blessed. We read that the righteous in Eden see the wicked in Gehenna and rejoice; and similarly, that the wicked in Gehenna see the righteous sitting beatified in Eden, and their souls are troubled (Edersheim, “Life and Times of Jesus”). Christ also was in Hades (Acts 2:27, Acts 2:31). Moreover, the word γέεννα , hell (see on Matthew 5:22), is specially used to denote the place of future punishment. Hades, then, in the New Testament, is a broad and general conception, with an idea of locality bound up with it. It is the condition following death, which is blessed or the contrary, according to the moral character of the dead, and is therefore divided into different realms, represented by Paradise or Abraham's bosom, and Gehenna. The expression Gates of Hades is an orientalism for the court, throne, power, and dignity of the infernal kingdom. Hades is contemplated as a mighty city, with formidable, frowning portals. Some expositors introduce also the idea of the councils of the Satanic powers, with reference to the Eastern custom of holding such deliberations in the gates of cities. Compare the expression Sublime Porte, applied to the Ottoman court. The idea of a building is maintained in both members of the comparison. The kingdom or city of Hades confronts and assaults the church which Christ will build upon the rock. See Job 38:17; Psalm 9:13; Psalm 107:18; Isaiah 38:10. [source]
John 1:12 As many as received him [οσοι ελαβον αυτον]
Effective aorist active indicative of λαμβανω — lambanō “as many as did receive him,” in contrast with οι ιδιοι — hoi idioi just before, exceptional action on the part of the disciples and other believers. To them Dative case explanatory of the relative clause preceding, an anacoluthon common in John 27 times as against 21 in the Synoptists. This is a common Aramaic idiom and is urged by Burney (Aramaic Origin, etc., p. 64) for his theory of an Aramaic original of the Fourth Gospel. The right In John 5:27 εδωκεν — edōken (first aorist active indicative of διδωμι — didōmi) εχουσιαν — exousian means authority but includes power Here it is more the notion of privilege or right. To become Second aorist middle of γινομαι — ginomai to become what they were not before. Children of God In the full spiritual sense, not as mere offspring of God true of all men (Acts 17:28). Paul‘s phrase υιοι τεου — huioi theou (Galatians 3:26) for believers, used also by Jesus of the pure in heart (Matthew 5:9), does not occur in John‘s Gospel (but in Revelation 21:7). It is possible that John prefers τα τεκνα του τεου — ta tekna tou theou for the spiritual children of God whether Jew or Gentile (John 11:52) because of the community of nature But one cannot follow Westcott in insisting on “adoption” as Paul‘s reason for the use of υιοι — huioi since Jesus uses υιοι τεου — huioi theou in Matthew 5:9. Clearly the idea of regeneration is involved here as in John 3:3. Even to them that believe No “even” in the Greek, merely explanatory apposition with αυτοις — autois dative case of the articular present active participle of πιστευω — pisteuō On his name Bernard notes πιστευω εις — pisteuō eis 35 times in John, to put trust in or on. See also John 2:23 and John 3:36 for πιστευω εις το ονομα αυτου — pisteuō eis to onoma autou This common use of ονομα — onoma for the person is an Aramaism, but it occurs also in the vernacular papyri and εις το ονομα — eis to onoma is particularly common in the payment of debts (Moulton and Milligan‘s Vocabulary). See Acts 1:15 for ονοματα — onomata for persons. [source]
Acts 27:21 Stood forth [στατεις]
As in Acts 1:15; Acts 2:14; Acts 17:22. Pictorial word (Page) that sets forth the vividness and solemnity of the scene (Knowling). Ye should have hearkened unto me (εδει μεν πειταρχησαντας μοι — edei men peitharchēsantas moi). Literally, “It was necessary for you hearkening unto me not to set sail (μη αναγεσται — mē anagesthai).” It was not the “I told you so” of a small nature, “but a reference to the wisdom of his former counsel in order to induce acceptance of his present advice” (Furneaux). The first aorist active participle is in the accusative of general reference with the present infinitive αναγεσται — anagesthai And have gotten this injury and loss This Ionic form κερδησαι — kerdēsai (from κερδαω — kerdaō) rather than κερδηναι — kerdēnai or κερδαναι — kerdēnai is common in late Greek (Robertson, Grammar, p. 349). The Revised Version thus carries over the negative μη — mē to this first aorist active infinitive κερδησαι — kerdēsai from κερδαω — kerdaō (cf. Matthew 16:26). But Page follows Thayer in urging that this is not exact, that Paul means that by taking his advice they ought to have escaped this injury and loss. “A person is said in Greek ‹to gain a loss‘ when, being in danger of incurring it, he by his conduct saves himself from doing so.” This is probably Paul‘s idea here. [source]
2 Thessalonians 1:12 The name [το ονομα]
The Old Testament (lxx) uses ονομα — onoma embodying the revealed character of Jehovah. So here the Name of our Lord Jesus means the Messiahship and Lordship of Jesus. The common Greek idiom of ονομα — onoma for title or dignity as in the papyri (Milligan) is not quite this idiom. The papyri also give examples of ονομα — onoma for person as in O.T. and Acts 1:15 (Deissmann, Bible Studies, pp. 196ff.). In you, and ye in him (εν υμιν και υμεις εν αυτωι — en huminκατα την χαριν — kai humeis en autōi). This reciprocal glorying is Pauline, but it is also like Christ‘s figure of the vine and the branches in John 15:1-11. According to the grace Not merely standard, but also aim (Robertson, Grammar, p. 609). Of our God and the Lord Jesus Christ (τεου — tou theou hēmōn kai kuriou Iēsou Christou). Here strict syntax requires, since there is only one article with κυριου — theou and Κυριος — kuriou that one person be meant, Jesus Christ, as is certainly true in Titus 2:13; 2 Peter 1:1 (Robertson, Grammar, p.786). This otherwise conclusive syntactical argument, admitted by Schmiedel, is weakened a bit by the fact that σωτηρ — Kurios is often employed as a proper name without the article, a thing not true of εν τηι βασιλειαι του Χριστου και τεου — sōtēr in Titus 2:13; 2 Peter 1:1. So in Ephesians 5:5 τεος — en tēi basileiāi tou Christou kai theou the natural meaning is in the Kingdom of Christ and God regarded as one, but here again Κυριος — theos like Kurios often occurs as a proper name without the article. So it has to be admitted that here Paul may mean “according to the grace of our God and the Lord Jesus Christ,” though he may also mean “according to the grace of our God and Lord, Jesus Christ.” [source]
2 Thessalonians 1:12 Name []
of our Lord Jesus means the Messiahship and Lordship of Jesus. The common Greek idiom of ονομα — onoma for title or dignity as in the papyri (Milligan) is not quite this idiom. The papyri also give examples of ονομα — onoma for person as in O.T. and Acts 1:15 (Deissmann, Bible Studies, pp. 196ff.). In you, and ye in him (εν υμιν και υμεις εν αυτωι — en huminκατα την χαριν — kai humeis en autōi). This reciprocal glorying is Pauline, but it is also like Christ‘s figure of the vine and the branches in John 15:1-11. According to the grace Not merely standard, but also aim (Robertson, Grammar, p. 609). Of our God and the Lord Jesus Christ (τεου — tou theou hēmōn kai kuriou Iēsou Christou). Here strict syntax requires, since there is only one article with κυριου — theou and Κυριος — kuriou that one person be meant, Jesus Christ, as is certainly true in Titus 2:13; 2 Peter 1:1 (Robertson, Grammar, p.786). This otherwise conclusive syntactical argument, admitted by Schmiedel, is weakened a bit by the fact that σωτηρ — Kurios is often employed as a proper name without the article, a thing not true of εν τηι βασιλειαι του Χριστου και τεου — sōtēr in Titus 2:13; 2 Peter 1:1. So in Ephesians 5:5 τεος — en tēi basileiāi tou Christou kai theou the natural meaning is in the Kingdom of Christ and God regarded as one, but here again Κυριος — theos like Kurios often occurs as a proper name without the article. So it has to be admitted that here Paul may mean “according to the grace of our God and the Lord Jesus Christ,” though he may also mean “according to the grace of our God and Lord, Jesus Christ.” [source]
1 John 2:9 His brother [τὸν ἀδελφόν]
His fellow-Christian. The singular, brother, is characteristic of this Epistle. See 1 John 2:10, 1 John 2:11; 1 John 3:10, 1 John 3:15, 1 John 3:17; 1 John 4:20, 1 John 4:21; 1 John 5:16. Christians are called in the New Testament, Christians (Acts 11:26; Acts 26:28; 1 Peter 4:16), mainly by those outside of the Christian circle. Disciples, applied to all followers of Christ (John 2:11; John 6:61) and strictly to the twelve (John 13:5sqq.). In Acts 19:1, to those who had received only John's baptism. Not found in John's Epistles nor in Revelation. Brethren. The first title given to the body of believers after the Ascension (Acts 1:15, where the true reading is ἀδελφῶν brethrenfor μαθητῶν disciples). See Acts 9:30; Acts 10:23; Acts 11:29; 1 Thessalonians 4:10; 1 Thessalonians 5:26; 1 John 3:14; 3 John 1:5, 3 John 1:10; John 21:23. Peter has ἡ ἀδελφότης thebrotherhood (1 Peter 2:17; 1 Peter 5:9). The believers. Under three forms: The believers ( οἱ πιστοί ; Acts 10:45; 1 Timothy 4:12); they that believe ( οἱ πιστεύοντες ; 1 Peter 2:7; 1 Thessalonians 1:7; Ephesians 1:19); they that believed ( οἱ πιστεύσαντες ; Acts 2:44; Acts 4:32; Hebrews 4:3). The saints ( οἱ ἅγιοι ); characteristic of Paul and Revelation. Four times in the Acts (Acts 9:13, Acts 9:32, Acts 9:41; Acts 26:10), and once in Jude (Judges 1:3). Also Hebrews 6:10; Hebrews 13:24. In Paul, 1 Corinthians 6:1; 1 Corinthians 14:33; Ephesians 1:1, Ephesians 1:15, etc. In Revelation 5:8; Revelation 8:3, Revelation 8:4; Revelation 11:18, etc.|Until now ( ἕως ἄρτι )|Though the light has been increasing, and though he may claim that he has been in the light from the first. The phrase occurs in John 2:10; John 5:17; John 16:24; and is used by Paul, 1 Corinthians 4:13; 1 Corinthians 8:7; 1 Corinthians 15:6.| [source]
Revelation 3:4 A few names [ολιγα ονοματα]
This use of ονομα — onoma for persons is seen in the Koiné (Deissmann, Bible Studies, p. 196f.) as in Acts 1:15; Revelation 11:13. [source]
Revelation 11:13 Fell [επεσεν]
Second aorist active indicative of πιπτω — piptō to fall. Only the tenth First aorist passive indicative of αποκτεινω — apokteinō as in Revelation 9:18.Seven thousand persons This use of ονοματα — onomata (names of men here) is like that in Revelation 3:4; Acts 1:15 and occurs in the papyri (Deissmann, Bible Studies, p. 196f.).Were affrighted (εμποβοι εγενοντο — emphoboi egenonto). “Became terrified,” old adjective (εν ποβος — enεδωκαν δοχαν — phobos fear) as in Luke 24:5; Acts 10:4; Acts 24:5. “A general movement toward Christianity, induced by fear or despair - a prediction fulfilled more than once in ecclesiastical history” (Swete).Gave glory First aorist active indicative of didōmi when they saw the effect of the earthquake, recognition of God‘s power (John 9:24; Acts 12:23; Romans 4:20). [source]
Revelation 11:13 Seven thousand persons [ονοματα αντρωπων χιλιαδες επτα]
This use of ονοματα — onomata (names of men here) is like that in Revelation 3:4; Acts 1:15 and occurs in the papyri (Deissmann, Bible Studies, p. 196f.).Were affrighted (εμποβοι εγενοντο — emphoboi egenonto). “Became terrified,” old adjective (εν ποβος — enεδωκαν δοχαν — phobos fear) as in Luke 24:5; Acts 10:4; Acts 24:5. “A general movement toward Christianity, induced by fear or despair - a prediction fulfilled more than once in ecclesiastical history” (Swete).Gave glory First aorist active indicative of didōmi when they saw the effect of the earthquake, recognition of God‘s power (John 9:24; Acts 12:23; Romans 4:20). [source]

What do the individual words in Acts 1:15 mean?

And in the days these having stood up Peter [the] midst of the brothers he said was then [the] number of names together the same about a hundred twenty
Καὶ ἐν ταῖς ἡμέραις ταύταις ἀναστὰς Πέτρος μέσῳ τῶν ἀδελφῶν εἶπεν ἦν τε ὄχλος ὀνομάτων ἐπὶ τὸ αὐτὸ ὡσεὶ ἑκατὸν εἴκοσι

ἡμέραις  days 
Parse: Noun, Dative Feminine Plural
Root: ἡμέρα  
Sense: the day, used of the natural day, or the interval between sunrise and sunset, as distinguished from and contrasted with the night.
ταύταις  these 
Parse: Demonstrative Pronoun, Dative Feminine Plural
Root: οὗτος  
Sense: this.
ἀναστὰς  having  stood  up 
Parse: Verb, Aorist Participle Active, Nominative Masculine Singular
Root: ἀναπηδάω 
Sense: to cause to rise up, raise up.
Πέτρος  Peter 
Parse: Noun, Nominative Masculine Singular
Root: Πέτρος  
Sense: one of the twelve disciples of Jesus.
μέσῳ  [the]  midst 
Parse: Adjective, Dative Neuter Singular
Root: μέσος  
Sense: middle.
τῶν  of  the 
Parse: Article, Genitive Masculine Plural
Root:  
Sense: this, that, these, etc.
ἀδελφῶν  brothers 
Parse: Noun, Genitive Masculine Plural
Root: ἀδελφός  
Sense: a brother, whether born of the same two parents or only of the same father or mother.
εἶπεν  he  said 
Parse: Verb, Aorist Indicative Active, 3rd Person Singular
Root: λέγω  
Sense: to speak, say.
ὄχλος  [the]  number 
Parse: Noun, Nominative Masculine Singular
Root: ὄχλος  
Sense: a crowd.
ὀνομάτων  of  names 
Parse: Noun, Genitive Neuter Plural
Root: ὄνομα  
Sense: name: univ.
ἐπὶ  together 
Parse: Preposition
Root: ἐπί  
Sense: upon, on, at, by, before.
αὐτὸ  same 
Parse: Personal / Possessive Pronoun, Accusative Neuter 3rd Person Singular
Root: αὐτός  
Sense: himself, herself, themselves, itself.
ὡσεὶ  about 
Parse: Adverb
Root: ὡσεί  
Sense: as it were, (had been), as though, as, like as, like.
ἑκατὸν  a  hundred 
Parse: Adjective, Nominative Masculine Plural
Root: ἑκατόν  
Sense: a hundred.
εἴκοσι  twenty 
Parse: Adjective, Nominative Masculine Plural
Root: εἴκοσι  
Sense: twenty.