The Meaning of Revelation 3:7 Explained

Revelation 3:7

KJV: And to the angel of the church in Philadelphia write; These things saith he that is holy, he that is true, he that hath the key of David, he that openeth, and no man shutteth; and shutteth, and no man openeth;

YLT: 'And to the messenger of the assembly in Philadelphia write: These things saith he who is holy, he who is true, he who is having the key of David, he who is opening and no one doth shut, and he shutteth and no one doth open!

Darby: And to the angel of the assembly in Philadelphia write: These things saith the holy, the true; he that has the key of David, he who opens and no one shall shut, and shuts and no one shall open:

ASV: And to the angel of the church in Philadelphia write: These things saith he that is holy, he that is true, he that hath the key of David, he that openeth and none shall shut, and that shutteth and none openeth:

What does Revelation 3:7 Mean?

Study Notes

angel
.
angels
Angel, Summary: Angel, "messenger," is used of God, of men, and of an order of created spiritual beings whose chief attributes are strength and wisdom. 2 Samuel 14:20 ; Psalms 103:20 ; Psalms 104:4 . In the O.T. the expression "the angel of the Lord" (sometimes "of God") usually implies the presence of Deity in angelic form.; Genesis 16:1-13 ; Genesis 21:17-19 ; Genesis 22:11-16 ; Genesis 31:11-13 ; Exodus 3:2-4 ; Judges 2:1 ; Judges 6:12-16 ; Judges 13:3-22 (See Scofield " Malachi 3:1 ") . The word "angel" is used of men in; Luke 7:24 ; James 2:25 ; Revelation 1:20 ; Revelation 2:1 ; Revelation 2:8 ; Revelation 2:12 ; Revelation 2:18 ; Revelation 3:1 ; Revelation 3:7 ; Revelation 3:14 In Revelation 8:3-5 . Christ is evidently meant. Sometimes angel is used of the spirit of man.; Matthew 18:10 ; Acts 12:15 . Though angels are spirits; Psalms 104:4 ; Hebrews 1:14 power is given them to become visible in the semblance of human form. Genesis 19:1 cf; Genesis 19:5 ; Exodus 3:2 ; Numbers 22:22-31 ; Judges 2:1 ; Judges 6:11 ; Judges 6:22 ; Judges 13:3 ; Judges 13:6 ; 1 Chronicles 21:16 ; 1 Chronicles 21:20 ; Matthew 1:20 ; Luke 1:26 ; John 20:12 ; Acts 7:30 ; Acts 12:7 ; Acts 12:8 etc.). The word is always used in the masculine gender, though sex, in the human sense, is never ascribed to angels.; Matthew 22:30 ; Mark 12:25 . They are exceedingly numerous.; Matthew 26:53 ; Hebrews 12:22 ; Revelation 5:11 ; Psalms 68:17 . The power is inconceivable. 2 Kings 19:35 . Their place is about the throne of God.; Revelation 5:11 ; Revelation 7:11 . Their relation to the believer is that of "ministering spirits, sent forth to minister for them who shall be heirs of salvation," and this ministry has reference largely to the physical safety and well-being of believers.; 1 Kings 19:5 ; Psalms 34:7 ; Psalms 91:11 ; Daniel 6:22 ; Matthew 2:13 ; Matthew 2:19 ; Matthew 4:11 ; Luke 22:43 ; Acts 5:19 ; Acts 12:7-10 . From; Hebrews 1:14 ; Matthew 18:10 ; Psalms 91:11 it would seem that this care for the heirs of salvation begins in infancy and continues through life. The angels observe us; 1 Corinthians 4:9 ; Ephesians 3:10 ; Ecclesiastes 5:6 a fact which should influence conduct. They receive departing saints. Luke 16:22 . Man is made "a little lower than the angels," and in incarnation Christ took "for a little "time" this lower place.; Psalms 8:4 ; Psalms 8:5 ; Hebrews 2:6 ; Hebrews 2:9 that He might lift the believer into His own sphere above angels. Hebrews 2:9 ; Hebrews 2:10 . The angels are to accompany Christ in His second advent. Matthew 25:31 . To them will be committed the preparation of the judgment of the nations. Matthew 13:30 ; Matthew 13:39 ; Matthew 13:41 ; Matthew 13:42 . See Scofield " Matthew 25:32 ". The kingdom-age is not to be subject to angels, but to Christ and those for whom He was made a little lower than the angels. Hebrews 2:5 An archangel, Michael, is mentioned as having a particular relation to Israel and to the resurrections.; Daniel 10:13 ; Daniel 10:21 ; Daniel 12:1 ; Daniel 12:2 ; Judges 1:9 ; 1 Thessalonians 4:16 . The only other angel whose name is revealed Gabriel, was employed in the most distinguished services.; Daniel 8:16 ; Daniel 9:21 ; Luke 1:19 ; Luke 1:26 .
Fallen angels. Two classes of these are mentioned:
(1) "The angels which kept not their first estate place, but left their own habitation," are "chained under darkness," awaiting judgment. 2 Peter 2:4 ; Judges 1:6 ; 1 Corinthians 6:3 ; John 5:22 .
(See Scofield " Genesis 6:4 ")
(2) The angels who have Satan Genesis 3:1 as leader.
(See Scofield " Revelation 20:10 ") .
The origin of these is nowhere explicitly revealed. They may be identical with the demons.
(See Scofield " Matthew 7:22 ") . For Satan and his angels everlasting fire is prepared. Matthew 25:41 ; Revelation 20:10 .

Verse Meaning

Philadelphia (lit. brotherly love; cf. Romans 12:10; 1 Thessalonians 4:9; Hebrews 13:1; et al.) lay about30 miles southeast of Sardis. A Pergamenian king, Attalus II (159-138 B.C.), founded it. The town received its name from his nickname, "Philadelphus" or "brother lover." This king had a special devotion to his brother, Eumenes II. The city stood in a wine-producing area and was the Song of Solomon -called gateway to central Asia Minor. The modern name of this town is Alasehir.
"It was a missionary city, founded to promote a unity of spirit, customs and loyalty within the realm, the apostle of Hellenism in an Oriental land." [1]
Because it experienced earthquakes from time to time more of the population than normal chose to live outside the city walls.
Jesus Christ presented Himself to these saints as holy (cf. Revelation 4:8; Revelation 6:10; Psalm 16:10; Habakkuk 3:3; Isaiah 40:25; Mark 1:24; Luke 1:35; Luke 4:34; John 6:69; Acts 4:27; Acts 4:30; 1 Peter 1:15; 1 John 2:20), true (genuine), and authoritative (cf. Revelation 1:5; Revelation 6:10). The "key of David" seems to refer to Isaiah 22:20-23 where Hezekiah"s servant, Eliakim, received authority over David"s house, including access to all the king"s treasures. Jesus claimed to have God"s full administrative authority over salvation and judgment and to distribute or not distribute all God"s resources according to His will.

Context Summary

Revelation 3:7-13 - Let No One Take Thy Crown
For those who have but a little strength, the Lord sets open a wide door. You may not be able to open the door, but you can enter it in His Name. Once He opens the door, all the opposition you may be called upon to encounter will not avail to shut it; and if He shuts the door against your adversaries, all their craft and strength will beat against its exterior in vain. Get Christ to shut the door against the tempting at would allure you from your allegiance, may be sorely beset, but He will keep them in the hour of trial. They shall not miss their crown, but shall become permanent and important constituents in the eternal Temple. "We have often stood to notice the strength and stability of a pillar in an old church. It has looked unmoved on generations that have grown from youth to age at its base, and so shall Christ's saints endure.
It is marvelous how much Christ can make of our poor lives, if only we yield to Him. It was said of a great statesman recently deceased, "He was a resounding example of what a great thing a great man may make of a life." But how much greater can Christ make a life, once a mere block of stone, but now inscribed with His own mystic handwriting and engraving! [source]

Chapter Summary: Revelation 3

1  The angel of the church of Sardis is reproved and exhorted to repent
7  The angel of the church of Philadelphia is approved for his diligence and patience;
14  the angel of Laodicea rebuked for being neither hot nor cold
20  Christ stands at the door and knocks

Greek Commentary for Revelation 3:7

In Philadelphia [εν Πιλαδελπιαι]
Some twenty-eight miles south-east of Sardis, in Lydia, subject to earthquakes, rebuilt by Tiberius after the great earthquake of a.d. 17, for a time called in coins Neo-Caesarea, in wine-growing district with Bacchus (Dionysos) as the chief deity, on fine Roman roads and of commercial importance, though not a large city, called by Ramsay (op. cit., p. 392) “the Missionary City” to promote the spread of the Graeco-Roman civilization and then of Christianity, later offering stubborn resistance to the Turks (1379-90 a.d.) and now called Ala-Sheher (reddish city, Charles, from the red hills behind it). The chief opposition to the faithful little church is from the Jews (cf. Rom 9-11). There are some 1,000 Christians there today. [source]
The holy, he that is true [ο αγιοσ ο αλητινος]
Separate articles (four in all) for each item in this description. “The holy, the genuine.” Asyndeton in the Greek. Latin Vulgate, Sanctus et Verus. αγιος — Hosea hagios is ascribed to God in Revelation 19:11-1677; Revelation 6:10 (both αλητινος — hagios and αλητινος — alēthinos as here), but to Christ in Mark 1:24; Luke 4:34; John 6:69; Acts 4:27, Acts 4:30; 1 John 2:20, a recognized title of the Messiah as the consecrated one set apart. Swete notes that αλητης — alēthinos is verus as distinguished from verax So it is applied to God in Revelation 6:10 and to Christ in Revelation 3:14; Revelation 19:11 as in John 1:9; John 6:32; John 15:1.He that hath the key of David (και ουδεις κλεισει — ho echōn tēn klein Daueid). This epithet comes from Isaiah 22:22, where Eliakim as the chief steward of the royal household holds the keys of power. Christ as the Messiah (Revelation 5:5; Revelation 22:16) has exclusive power in heaven, on earth, and in Hades (Matthew 16:19; Matthew 28:18; Romans 14:9; Philemon 2:9.; Revelation 1:18). Christ has power to admit and exclude of his own will (Matthew 25:10.; Ephesians 1:22; Revelation 3:21; 1618484450_6; Revelation 20:4; Revelation 22:16).And none shall shut Charles calls the structure Hebrew (future active indicative of ο ανοιγων — kleiō), and not Greek because it does not correspond to the present articular participle just before και ουδεις ανοιγει — ho anoigōn (the one opening), but it occurs often in this book as in the very next clause, “and none openeth” (κλειων — kai oudeis anoigei) over against κλειει — kleiōn (present active participle, opening) though here some MSS. read kleiei (present active indicative, open). [source]
He that hath the key of David [και ουδεις κλεισει]
This epithet comes from Isaiah 22:22, where Eliakim as the chief steward of the royal household holds the keys of power. Christ as the Messiah (Revelation 5:5; Revelation 22:16) has exclusive power in heaven, on earth, and in Hades (Matthew 16:19; Matthew 28:18; Romans 14:9; Philemon 2:9.; Revelation 1:18). Christ has power to admit and exclude of his own will (Matthew 25:10.; Ephesians 1:22; Revelation 3:21; Revelation 19:11-16; Revelation 20:4; Revelation 22:16). [source]
And none shall shut [κλειω]
Charles calls the structure Hebrew (future active indicative of ο ανοιγων — kleiō), and not Greek because it does not correspond to the present articular participle just before και ουδεις ανοιγει — ho anoigōn (the one opening), but it occurs often in this book as in the very next clause, “and none openeth” (κλειων — kai oudeis anoigei) over against κλειει — kleiōn (present active participle, opening) though here some MSS. read kleiei (present active indicative, open). [source]
Philadelphia []
Seventy-five miles southeast of Sardis. The second city in Lydia. The adjacent region was celebrated as a wine-growing district, and its coins bore the head of Bacchus and the figure of a Bacchante. The population included Jews, Jewish Christians, and converts from heathenism. It suffered from frequent earthquakes. Of all the seven churches it had the longest duration of prosperity as a Christian city. It still exists as a Turkish town under the name of Allah Shehr, City of God. The situation is picturesque, the town being built on four or five hills, and well supplied with trees, and the climate is healthful. One of the mosques is believed by the native Christians to have been the gathering-place of the church addressed in Revelation. “One solitary pillar of high antiquity has been often noticed as reminding beholders of the words in Revelation 3:12: 'Him that overcometh will I make a pillar in the temple of my God.'” [source]
He that is holy [ὁ ἅγιος]
See on Acts 26:10. Christ is called holy, Acts 2:27; Acts 13:35; Hebrews 7:26; in all which passages the word, however, is ὅσιος , which is holy by sanction, applied to one who diligently observes all the sanctities of religion. It is appropriate to Christ, therefore, as being the one in whom these eternal sanctities are grounded and reside. Ἅγιος , the word used here, refers rather to separation from evil. [source]
He that is true [ὁ ἀληθινὸς]
See on John 1:9. Αληθινὸς is not merely, genuine as contrasted with the absolutely false, but as contrasted with that which is only subordinately or typically true. It expresses the perfect realization of an idea as contrasted with its partial realization. Thus, Moses gave bread, but the Father giveth the true bread ( τὸν ἄρτον τὸν ἀληθινόν ). Israel was a vine of God's planting (Psalm 80:8), Christ is the true ( ἡ ἀληθινὴ ) vine (John 15:1). The word is so characteristic of John that, while found only once in the Synoptic Gospels, once in a Pauline Epistle, and four times in the Epistle to the Hebrews, it occurs nine times in the fourth Gospel, four times in John's First Epistle, and ten times in Revelation, and in every instance in these three latter books in its own distinctive signification. [source]
The key of David []
See on Revelation 1:18, and compare Isaiah 22:22. David is the type of Christ, the supreme ruler of the kingdom of heaven. See Jeremiah 30:9; Ezekiel 34:23; Ezekiel 37:24. The house of David is the typical designation of the kingdom of Jesus Christ (Psalm 122:5). The holding of the keys, the symbols of power, thus belongs to Christ as Lord of the kingdom and Church of God. See on Matthew 16:19: He admits and excludes at His pleasure. [source]
No man shutteth [οὐδεὶς κλείει]
Read κλείσει shallshut So Rev. [source]

Reverse Greek Commentary Search for Revelation 3:7

Matthew 16:19 The Keys of the kingdom [τας κλειδας της βασιλειας]
Here again we have the figure of a building with keys to open from the outside. The question is raised at once if Jesus does not here mean the same thing by “kingdom” that he did by “church” in Matthew 16:18. In Revelation 1:18; Revelation 3:7 Christ the Risen Lord has “the keys of death and of Hades.” He has also “the keys of the kingdom of heaven” which he here hands over to Peter as “gatekeeper” or “steward” Later after the Resurrection Christ will use this same language to all the disciples (John 20:23), showing that it was not a special prerogative of Peter. He is simply first among equals, primus inter pares, because on this occasion he was spokesman for the faith of all. It is a violent leap in logic to claim power to forgive sins, to pronounce absolution, by reason of the technical rabbinical language that Jesus employed about binding and loosing. Every preacher uses the keys of the kingdom when he proclaims the terms of salvation in Christ. The proclamation of these terms when accepted by faith in Christ has the sanction and approval of God the Father. The more personal we make these great words the nearer we come to the mind of Christ. The more ecclesiastical we make them the further we drift away from him. [source]
2 Corinthians 1:19 In Him was yea [ναὶ ἐν αὐτῷ γέγονεν]
Lit., yea has come to pass in Him. He has shown Himself absolutely the truth. Compare John 14:6; Revelation 3:7, Revelation 3:14. [source]
Colossians 1:22 Holy, unblamable, unreprovable [ἁγίους, ἀμώμους, ἀνεγκλήτους]
Holy, see on saints, Acts 26:10; see on Revelation 3:7. The fundamental idea of the word is separation unto God and from worldly defilement. Unblamable, Rev. much better, without blemish. Compare Ephesians 1:4; Ephesians 5:27; and see on 1 Peter 1:19, and see on blemishes, 2 Peter 2:13. Unreprovable, not only actually free from blemish, but from the charge of it. See on 1 Corinthians 1:8, and compare 1 Timothy 6:14. [source]
Hebrews 13:1 Let brotherly love continue [φιλαδελφία μενέτω]
Φιλαδελφία in Paul, Romans 12:10; 1 Thessalonians 4:9. As a proper name, Revelation 1:11; Revelation 3:7. It is not necessary to suppose that the admonition implies signs of estrangement among those addressed. Comp. Hebrews 3:13; Hebrews 6:10; Hebrews 10:24; Hebrews 12:12-15. [source]
1 John 5:20 Him that is true [τὸν ἀληθινόν]
Compare Revelation 3:7, Revelation 3:14; Revelation 6:10. On true, see on John 1:9. “God very strangely condescends indeed in making things plain to me, actually assuming for the time the form of a man, that I at my poor level may better see Him. This is my opportunity to know Him. This incarnation is God making Himself accessible to human thought - God opening to man the possibility of correspondence through Jesus Christ. And this correspondence and this environment are those I seek. He Himself assures me, 'This is life eternal, that they might know Thee, the only true God, and Jesus Christ whom Thou hast sent.' Do I not now discern the deeper meaning in Jesus Christ whom Thou hast sent? Do I not better understand with what vision and rapture the profoundest of the disciples exclaims, 'The Son of God is come, and hath given us an understanding, that we might know Him that is true?'” (Drummond, “Natural Law in the Spiritual World”). [source]
1 John 2:20 The Holy One []
Christ. See John 6:69; Acts 3:14; Acts 4:27, Acts 4:30; Revelation 3:7. [source]
Revelation 6:10 TRUE [ἀληθινὸς]
See on John 1:9; see on Revelation 3:7. [source]
Revelation 3:14 TRUE [ἀληθινὸς]
See on Revelation 3:7. The veracity of Christ is thus asserted in the word faithful, true being not true as distinguished from false, but true to the normal idea of a witness. [source]
Revelation 1:18 The keys of Hell and Death []
Rev., correctly, of Death and of Hades. Conceived as a prison-house or a walled city. See on Matthew 16:18. The keys are the symbol of authority. See Matthew 16:19; Revelation 3:7; Revelation 9:1; Revelation 20:1. The Rabbinical proverb said: “There are four keys lodged in God's hand, which He committeth neither to angel nor to seraph: the key of the rain, the key of food, the key of the tombs, and the key of a barren woman.” [source]
Revelation 1:18 I am alive [ζων ειμι]
Periphrastic present active indicative, “I am living,” as the words ο ζων — ho zōn just used mean.Forevermore (εις τους αιωνας των αιωνων — eis tous aiōnas tōn aiōnōn). “Unto the ages of the ages,” a stronger expression of eternity even than in Revelation 1:6.The keys One of the forms for the accusative plural along with κλειδας — kleidas the usual one (Matthew 16:19).Of death and of Hades (του τανατου και του αιδου — tou thanatou kai tou hāidou). Conceived as in Matthew 16:18 as a prison house or walled city. The keys are the symbol of authority, as we speak of honouring one by giving him the keys of the city. Hades here means the unseen world to which death is the portal. Jesus has the keys because of his victory over death. See this same graphic picture in Revelation 6:8; Revelation 20:13. For the key of David see Revelation 3:7, for the key of the abyss see Revelation 9:1; Revelation 20:1. [source]
Revelation 1:18 The keys [τας κλεις]
One of the forms for the accusative plural along with κλειδας — kleidas the usual one (Matthew 16:19).Of death and of Hades (του τανατου και του αιδου — tou thanatou kai tou hāidou). Conceived as in Matthew 16:18 as a prison house or walled city. The keys are the symbol of authority, as we speak of honouring one by giving him the keys of the city. Hades here means the unseen world to which death is the portal. Jesus has the keys because of his victory over death. See this same graphic picture in Revelation 6:8; Revelation 20:13. For the key of David see Revelation 3:7, for the key of the abyss see Revelation 9:1; Revelation 20:1. [source]
Revelation 1:18 Of death and of Hades [του τανατου και του αιδου]
Conceived as in Matthew 16:18 as a prison house or walled city. The keys are the symbol of authority, as we speak of honouring one by giving him the keys of the city. Hades here means the unseen world to which death is the portal. Jesus has the keys because of his victory over death. See this same graphic picture in Revelation 6:8; Revelation 20:13. For the key of David see Revelation 3:7, for the key of the abyss see Revelation 9:1; Revelation 20:1. [source]
Revelation 3:8 I have set [δεδωκα]
Perfect active indicative of διδωμι — didōmi “I have given” (a gift of Christ, this open door). See Luke 12:51 for a like use of διδωμι — didōmi door opened Perfect (triple reduplication) passive predicate participle of ανοιγω — anoigō (Revelation 3:7) accusative feminine singular. The metaphor of the open door was a common one (John 10:7-9; Acts 14:27; 1 Corinthians 16:9; 2 Corinthians 2:12; Colossians 4:3; Revelation 3:20; Revelation 4:1). Probably it means here a good opportunity for missionary effort in spite of the Jewish hostility. [source]
Revelation 3:8 Which [ηναυτην]
Pleonastic vernacular and Hebrew repetition of the personal pronoun ην — autēn (it) after the relative οτι — hēn (which). Direct reference to the statement in Revelation 3:7.That (οιδα σου τα εργα — hoti). This conjunction resumes the construction of ιδουαυτην — oida sou ta erga (I know thy works) after the parenthesis (μικραν δυναμιν — idou- και ετηρησας — autēn Behold - shut).A little power Probably “little power,” little influence or weight in Philadelphia, the members probably from the lower classes (1 Corinthians 1:26.).And didst keep (τηρεω — kai etērēsas). “And yet (adversative use of ουκ ηρνησω — kai) didst keep” (first aorist active indicative of αρνεομαι — tēreō) my word in some crisis of trial. See John 17:6 for the phrase “keeping the word.”Didst not deny First aorist middle indicative second person singular of arneomai The issue was probably forced by the Jews (cf. Revelation 2:9), but they stood true. [source]
Revelation 3:9 Of them which say [των λεγοντων]
Ablative plural in apposition with συναγωγης — sunagōgēs On the construction of εαυτους Ιουδαιους ειναι — heautous Ioudaious einai see note on Revelation 2:9 Present middle indicative of πσευδομαι — pseudomai explanatory positive, addition here to και ουκ εισιν — kai ouk eisin of Revelation 2:9, in contrast also with ο αλητινος — ho alēthinos of Revelation 3:7 and in Johannine style (John 8:44; 1 John 1:10; 1 John 2:4).I will make them Future active indicative of ποιεω — poieō resuming the prophecy after the parenthesis “That they come and worship” (final clause, like facio ut in Latin, with ηκω — hina and the future active of προσκυνεω — hēkō and και γνωσιν — proskuneō). The language is based on Isaiah 45:14; Isaiah 60:14. The Jews expected homage (not worship in the strict sense) from the Gentiles, but it will come to the Christians at last (1 Corinthians 14:24). Later Ignatius (Philad. 6) warns this church against Judaizing Christians, perhaps one result of an influx of Jews.And to know Continuation of the purpose clause with ινα — hina but with the second aorist active subjunctive rather than the less usual future indicative. See both constructions also with εγω ηγαπησα σε — hina in Revelation 22:14. Probably a reminiscence of Isaiah 43:4 in egō ēgapēsa se (I loved thee), first aorist active indicative. [source]
Revelation 3:9 But do lie [αλλα πσευδονται]
Present middle indicative of πσευδομαι — pseudomai explanatory positive, addition here to και ουκ εισιν — kai ouk eisin of Revelation 2:9, in contrast also with ο αλητινος — ho alēthinos of Revelation 3:7 and in Johannine style (John 8:44; 1 John 1:10; 1 John 2:4). [source]
Revelation 3:14 The Amen [ο Αμην]
Personal (masculine article) name here alone, though in Isaiah 65:16 we have “the God of Amen” understood in the lxx as “the God of truth” Here applied to Christ. See Revelation 1:5 for ο μαρτυς ο πιστος — ho martus ho pistos (the faithful witness) and Revelation 3:7 for ο αλητινος — ho alēthinos (the genuine), “whose testimony never falls short of the truth” (Swete).The beginning of the creation of God (η αρχη της κτισεως του τεου — hē archē tēs ktiseōs tou theou). Not the first of creatures as the Arians held and Unitarians do now, but the originating source of creation through whom God works (Colossians 1:15, Colossians 1:18, a passage probably known to the Laodiceans, John 1:3; Hebrews 1:2, as is made clear by Revelation 1:18; Revelation 2:8; Revelation 3:21; Revelation 5:13). [source]
Revelation 6:10 O Master [ο δεσποτης]
Nominative articular form, but used as vocative On δεσποτης — despotēs (correlative of δουλος — doulos) see Luke 2:29. Here (alone in the Apocalypse) it is applied to God as in Luke 2:29; Acts 4:24, but to Christ in Judges 1:4; 2 Peter 2:1.The holy and true (ο αγιος και αλητινος — ho hagios kai alēthinos). See Revelation 3:7 for these attributes of God.Avenge our blood on them that dwell upon the earth This same idiom in Revelation 19:2 and see it also in Luke 18:7., “a passage which goes far to answer many questions in theodicy” (Swete). We find εκδικεω — ekdikeō late compound, used with εκ — ek as here in Deuteronomy 18:19; 1 Samuel 24:13, but with απο — apo in Luke 18:3. For επι της γης — epi tēs gēs (upon the earth) see Revelation 3:10. [source]
Revelation 6:10 The holy and true [ο αγιος και αλητινος]
See Revelation 3:7 for these attributes of God. [source]

What do the individual words in Revelation 3:7 mean?

And to [the] messenger of the in Philadelphia church write These things says the Holy [One] True [One] - having the key of David the [One] opening no one will shut shutting opens
Καὶ τῷ ἀγγέλῳ τῆς ἐν Φιλαδελφείᾳ ἐκκλησίας γράψον Τάδε λέγει ἅγιος ἀληθινός ἔχων τὴν κλεῖν Δαυίδ ἀνοίγων οὐδεὶς κλείσει κλείων ἀνοίγει

ἀγγέλῳ  [the]  messenger 
Parse: Noun, Dative Masculine Singular
Root: ἄγγελος  
Sense: a messenger, envoy, one who is sent, an angel, a messenger from God.
τῆς  of  the 
Parse: Article, Genitive Feminine Singular
Root:  
Sense: this, that, these, etc.
Φιλαδελφείᾳ  Philadelphia 
Parse: Noun, Dative Feminine Singular
Root: Φιλαδέλφεια  
Sense: a city of Lydia in Asia Minor, situated near the eastern base of of Mount Tmolus, founded and named by the Pergamene king, Attalus II Philadelphus.
ἐκκλησίας  church 
Parse: Noun, Genitive Feminine Singular
Root: ἐκκλησία  
Sense: a gathering of citizens called out from their homes into some public place, an assembly.
γράψον  write 
Parse: Verb, Aorist Imperative Active, 2nd Person Singular
Root: γράφω 
Sense: to write, with reference to the form of the letters.
Τάδε  These  things 
Parse: Demonstrative Pronoun, Accusative Neuter Plural
Root: ὅδε  
Sense: this one here, these things, as follows, thus.
λέγει  says 
Parse: Verb, Present Indicative Active, 3rd Person Singular
Root: λέγω 
Sense: to say, to speak.
ἅγιος  Holy  [One] 
Parse: Adjective, Nominative Masculine Singular
Root: ἅγιος  
Sense: most holy thing, a saint.
ἀληθινός  True  [One] 
Parse: Adjective, Nominative Masculine Singular
Root: ἀληθινός  
Sense: that which has not only the name and resemblance, but the real nature corresponding to the name, in every respect corresponding to the idea signified by the name, real, true genuine.
  - 
Parse: Article, Nominative Masculine Singular
Root:  
Sense: this, that, these, etc.
κλεῖν  key 
Parse: Noun, Accusative Feminine Singular
Root: κλείς  
Sense: a key.
Δαυίδ  of  David 
Parse: Noun, Genitive Masculine Singular
Root: Δαβίδ 
Sense: second king of Israel, and ancestor of Jesus Christ.
  the  [One] 
Parse: Article, Nominative Masculine Singular
Root:  
Sense: this, that, these, etc.
ἀνοίγων  opening 
Parse: Verb, Present Participle Active, Nominative Masculine Singular
Root: ἀνοίγω 
Sense: to open.
οὐδεὶς  no  one 
Parse: Adjective, Nominative Masculine Singular
Root: οὐδείς 
Sense: no one, nothing.
κλείσει  will  shut 
Parse: Verb, Future Indicative Active, 3rd Person Singular
Root: κλείω  
Sense: to shut, shut up.
κλείων  shutting 
Parse: Verb, Present Participle Active, Nominative Masculine Singular
Root: κλείω  
Sense: to shut, shut up.
ἀνοίγει  opens 
Parse: Verb, Present Indicative Active, 3rd Person Singular
Root: ἀνοίγω 
Sense: to open.