The Meaning of 2 Timothy 3:15 Explained

2 Timothy 3:15

KJV: And that from a child thou hast known the holy scriptures, which are able to make thee wise unto salvation through faith which is in Christ Jesus.

YLT: and because from a babe the Holy Writings thou hast known, which are able to make thee wise -- to salvation, through faith that is in Christ Jesus;

Darby: and that from a child thou hast known the sacred letters, which are able to make thee wise unto salvation, through faith which is in Christ Jesus.

ASV: And that from a babe thou hast known the sacred writings which are able to make thee wise unto salvation through faith which is in Christ Jesus.

KJV Reverse Interlinear

And  that  from  a child  thou hast known  the holy  scriptures,  which  are able  to make  thee  wise  unto  salvation  through  faith  which  is in  Christ  Jesus. 

What does 2 Timothy 3:15 Mean?

Study Notes

salvation
.
The Heb. and (Greek - ἀλεκτοροφωνία , safety, preservation, healing, and soundness). Salvation is the great inclusive word of the Gospel, gathering into itself all the redemptive acts and processes: as justification, redemption, grace, propitiation, imputation, forgiveness, sanctification, and glorification. Salvation is in three tenses:
(1) The believer has been saved from the guilt and penalty of sin Luke 7:50 ; 1 Corinthians 1:18 ; 2 Corinthians 2:15 ; Ephesians 2:5 ; Ephesians 2:8 ; 2 Timothy 1:9 and is safe.
(2) the believer is being saved from the habit and dominion of sin Romans 6:14 ; Philippians 1:19 ; Philippians 2:12 ; Philippians 2:13 ; 2 Thessalonians 2:13 ; Romans 8:2 ; Galatians 2:19 ; Galatians 2:20 ; 2 Corinthians 3:18 .
(3) The believer is to be saved in the sense of entire conformity to Christ. Romans 13:11 ; Hebrews 10:36 ; 1 Peter 1:5 ; 1 John 3:2 . Salvation is by grace through faith, is a free gift, and wholly without works; Romans 3:27 ; Romans 3:28 ; Romans 4:1-8 ; Romans 6:23 ; Ephesians 2:8 . The divine order is: first salvation, then works; Ephesians 2:9 ; Ephesians 2:10 ; Titus 3:5-8 .

Context Summary

2 Timothy 3:10-17 - Hold Fast To Inspired Scripture
The world does not love Christ or Christians any better than of old; and all who are minded to live godly lives will come inevitably to the cross in one form or another. To be without persecution should put us in serious doubt as to whether we are right. The spirit of the gospel is in absolute disagreement with the spirit of the world. But, whatever the losses and trials, let the children of God abide in the things which they have learned, and walk in blameless purity and consistency. The conduct, purpose, and patience of this great and holy Apostle gleam in front of us for our inspiration and guidance; and his experience will be ours-that there is no sorrow out of which we shall not be delivered, when we have learned the lesson it was sent to teach.
In the stern experiences of human life there is no stay that is comparable to the Holy Scriptures. The infinite variety of Scripture adapts itself to different states of the soul. Whatever our need, we can find its solace and remedy here. Thus we may live a complete life, finding in the Bible an equipment for all our emergencies. In this armory is every weapon for offense and defense; in this pharmacopoeia is a medicine and antidote for every wound. [source]

Chapter Summary: 2 Timothy 3

1  Paul advises Timothy of the difficult times to come;
6  describes the enemies of the truth;
10  explains unto him his own example;
16  and commends the holy Scriptures;

Greek Commentary for 2 Timothy 3:15

From a babe [απο βρεπους]
Only here in the Pastorals. This teaching from the fifth year, covering the whole of Timothy‘s recollections. See Mark 9:21 εκ παιδιοτεν — ek paidiothen from a child. [source]
Thou has known [οιδας]
Present active indicative, progressive perfect reaching from a babe till now. Would that Christian parents took like pains today. The sacred writings (ιερα γραμματα — hiera grammata). “Sacred writings” or “Holy Scriptures.” Here alone in N.T., though in Josephus (Proem to Ant. 3; Apion 1, etc.) and in Philo. The adjective ιερος — hieros occurs in 1 Corinthians 9:13 of the temple worship, and γραμμα — gramma in contrast to πνευμα — pneuma in 2 Corinthians 3:6.; Romans 2:29 and in John 5:47 of Moses‘ writings, in Acts 28:21 of an epistle, in Galatians 6:11 of letters (characters). In Ephesus there were Επεσια γραμματα — Ephesia grammata that were βεβηλα — bebēla (Acts 19:19), not ιερα — hiera To make thee wise First aorist active infinitive of σοπιζω — sophizō old verb (from σοπος — sophos), in N.T. only here, and 2 Peter 1:16. Which is in (της εν — tēs en). Common idiom with the article, “the in.” The use of the Scriptures was not magic, but of value when used “through faith that is in Christ Jesus.” [source]
The sacred writings [ιερα γραμματα]
“Sacred writings” or “Holy Scriptures.” Here alone in N.T., though in Josephus (Proem to Ant. 3; Apion 1, etc.) and in Philo. The adjective ιερος — hieros occurs in 1 Corinthians 9:13 of the temple worship, and γραμμα — gramma in contrast to πνευμα — pneuma in 2 Corinthians 3:6.; Romans 2:29 and in John 5:47 of Moses‘ writings, in Acts 28:21 of an epistle, in Galatians 6:11 of letters (characters). In Ephesus there were Επεσια γραμματα — Ephesia grammata that were βεβηλα — bebēla (Acts 19:19), not ιερα — hiera [source]
To make thee wise [σε σοπισαι]
First aorist active infinitive of σοπιζω — sophizō old verb (from σοπος — sophos), in N.T. only here, and 2 Peter 1:16. Which is in (της εν — tēs en). Common idiom with the article, “the in.” The use of the Scriptures was not magic, but of value when used “through faith that is in Christ Jesus.” [source]
Which is in [της εν]
Common idiom with the article, “the in.” The use of the Scriptures was not magic, but of value when used “through faith that is in Christ Jesus.” [source]
From a child [ἀπὸ βρέφους]
Mostly in Luke. oP. Only here in Pastorals. See on 1 Peter 2:2. Comp. Mark 9:21, ἐκ παιδιόθεν froma child. [source]
The holy Scriptures [ἱερὰ γράμματα]
Note particularly the absence of the article. Γράμματα is used in N.T. in several senses. Of characters of the alphabet (2 Corinthians 3:7; Galatians 6:11): of a document (Luke 16:6, take thy bill )epistles (Acts 28:21): of the writings of an author collectively (John 5:47): of learning (Acts 26:24, πολλά γράμματρα muchlearning ). In lxx, ἐπιστάμενος γράμματα knowinghow to read (Isaiah 29:11, Isaiah 29:12). The Holy Scriptures are nowhere called ἱερὰ γράμματα in N.T. In lxx, γράμματα is never used of sacred writings of any kind. Both Josephus and Philo use τὰ ἱερὰ γράμματα for the O.T. Scriptures. The words here should be rendered sacred learning. The books in the writer's mind were no doubt the Old Testament. Scriptures, in which Timothy, like every Jewish boy, had been instructed; but he does not mean to designate those books as ἱερὰ γράμματα . He means the learning acquired from Scripture by the rabbinic methods, according to which the Old Testament books were carefully searched for meanings hidden in each word and letter, and especially for messianic intimations. Specimens of such learning may be seen here and there in the writings of Paul as 1 Corinthians 9:9f.; 1 Corinthians 10:1f.; Galatians 3:16.; Galatians 4:21f. In Acts 4:13, the council, having heard Peter's speech, in which he interpreted Psalm 118:22and Isaiah 28:16of Christ, at once perceived that Peter and John were ἀγράμματοι , not versed in the methods of the schools. Before Agrippa, Paul drew the doctrine of the Resurrection from the Old Testament, whereupon Festus exclaimed, “much learning ( πολλὰ γράμματα , thy acquaintance with the exegesis of the schools) hath made thee mad” (Acts 26:24). To Agrippa, who was “expert in all customs and questions which are among the Jews” (Acts 26:3), the address of Paul, a pupil of Hillel, was not surprising, although he declared that Paul's reasoning did not appeal to him. In John 7:15, when Jesus taught in the temple, the Jews wondered and said: “How knoweth this man letters? ” That a Jew should know the Scriptures was not strange. The wonder lay in the exegetical skill of one who had not been trained by the literary methods of the time. [source]
To make thee wise [σε σοφίσαι]
Only hero and 2 Peter 1:16. See note there on cunningly devised. To give thee understanding of that which lies behind the letter; to enable thee to detect in the Old Testaments. books various hidden allusions to Christ; to draw from the Old Testaments the mystery of messianic salvation, and to interpret the Old Testaments with Christ as the key. This gives significance to the following words through faith which is in Christ Jesus. Jesus Christ was the key of Scripture, and through faith in him Scripture became a power unto salvation. The false teachers also had their learning but used it in expounding Jewish fables, genealogies, etc. Hence, their expositions, instead of making wise unto salvation, were vain babblings; profane and old wives' fables (1 Timothy 4:7; 2 Timothy 2:16). Const. through faith, etc., with make wise, not with salvation. [source]

Reverse Greek Commentary Search for 2 Timothy 3:15

John 5:47 Writings [γράμμασιν]
It is important to understand the precise sense of this word, because it goes to determine whether Jesus intended an antithesis between Moses' writings and His own words, or simply between Moses ( ἐκείνου ) and Himself ( ἐμοῖς ). Γράμμα primarily means what is written. Hence it may describe either a single character or a document. From this general notion several forms develop themselves in the New Testament. The word occurs in its narrower sense of characters, at Luke 23:38; 2 Corinthians 3:7; Galatians 6:11. In Acts 28:21, it means official communications. Paul, with a single exception (2 Corinthians 3:7), uses it of the letter of scripture as contrasted with its spirit (Romans 2:27, Romans 2:29; Romans 7:6; 2 Corinthians 3:6). In Luke 16:6, Luke 16:7, it denotes a debtor's bond (A.V., bill ). In John 7:15, Acts 26:24) it is used in the plural as a general term for scriptural and Rabbinical learning. Compare Sept., Isaiah 29:11, Isaiah 29:12) where a learned man is described as ἐπιτάμενος γράμματα , acquainted with letters. Once it is used collectively of the sacred writings - the scriptures (2 Timothy 3:15), though some give it a wider reference to Rabbinical exegesis, as well as to scripture itself. Among the Alexandrian Greeks the term is not confined to elementary instruction, but includes exposition, based, however, on critical study of the text. The tendency of such exegesis was often toward mystical and allegorical interpretation, degenerating into a petty ingenuity in fixing new and recondite meanings upon the old and familiar forms. This was illustrated by the Neo-Platonists' expositions of Homer, and by the Rabbinical exegesis. Men unacquainted with such studies, especially if they appeared as public teachers, would be regarded as ignorant by the Jews of the times of Christ and the Apostles. Hence the question respecting our Lord Himself: How knoweth this man letters ( γράμματα John 7:15)? Also the comment upon Peter and John (Acts 4:13) that they were unlearned ( ἀγράμματοι ). Thus, too, those who discovered in the Old Testament scriptures references to Christ, would be stigmatized by Pagans, as following the ingenious and fanciful method of the Jewish interpreters, which they held in contempt. Some such feeling may have provoked the words of Festus to Paul: Much learning ( πολλά γράμματα ) doth make thee mad (Acts 26:24). It is well known with what minute care the literal transcription of the sacred writings was guarded. The Scribes ( γραμματεῖς ) were charged with producing copies according to the letter ( κατὰ τὸ γράμμα ). -DIVIDER-
-DIVIDER-
The one passage in second Timothy cannot be urged in favor of the general use of the term for the scriptures, especially since the best texts reject the article before ἱερὰ γράμμα , so that the meaning is apparently more general: “thou hast known sacred writings.” The familiar formula for the scriptures was αἱ γραφαὶ ἁγίαι . A single book of the collection of writings was known as βιβλίον (Luke 4:17), or βίβλος (Luke 20:42); never γραφή , which was the term for a particular passage. See on Mark 12:10. -DIVIDER-
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It seems to me, therefore, that the antithesis between the writings of Moses, superstitiously reverenced in the letter, and minutely and critically searched and expounded by the Jews, and the living words ( ῥήμασιν , see on Luke 1:37), is to be recognized. This, however, need not exclude the other antithesis between Moses and Jesus personally. -DIVIDER-
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[source]

John 5:47 His writings [τοις εκεινου γραμμασιν]
Dative case with πιστυετε — pistuete See Luke 16:31 for a like argument. The authority of Moses was the greatest of all for Jews. There is a contrast also between writings Γραμμα — Gramma may mean the mere letter as opposed to spirit (2 Corinthians 3:6; Romans 2:27, Romans 2:29; Romans 7:6), a debtor‘s bond (Luke 16:6.), letters or learning (John 7:15; Acts 26:24) like αγραμματοι — agrammatoi for unlearned (Acts 4:13), merely written characters (Luke 23:38; 2 Corinthians 3:7; Galatians 6:11), official communications (Acts 28:21), once ιερα γραμματα — hiera grammata for the sacred writings (2 Timothy 3:15) instead of the more usual αι αγιαι γραπαι — hai hagiai graphai Γραπη — Graphē is used also for a single passage (Mark 12:10), but βιβλιον — biblion for a book or roll (Luke 4:17) or βιβλος — biblos (Luke 20:42). Jesus clearly states the fact that Moses wrote portions of the Old Testament, what portions he does not say. See also Luke 24:27, Luke 24:44 for the same idea. There was no answer from the rabbis to this conclusion of Christ. The scribes (οι γραμματεις — hoi grammateis) made copies according to the letter (κατα το γραμμα — kata to gramma). [source]
John 7:15 Marvelled [εταυμαζον]
Picturesque imperfect active of ταυμαζω — thaumazō “were wondering.” After all the bluster of the rulers (John 7:13) here was Jesus teaching without interruption. Knoweth letters Second perfect active indicative used as present. Γραμματα — Grammata old word from γραπω — graphō to write, is originally the letters formed (Galatians 6:11), then a letter or epistle (Acts 28:21), then the sacred Scriptures (John 5:47; 2 Timothy 3:15), then learning like Latin litterae and English letters (Acts 26:24; John 7:15). “The marvel was that Jesus showed Himself familiar with the literary methods of the time, which were supposed to be confined to the scholars of the popular teachers” (Westcott). Having never learned Perfect active participle of μαντανω — manthanō with μη — mē the usual negative (subjective) with the participle. It is not the wisdom of Jesus that disconcerted the Jewish leaders, but his learning (Marcus Dods). And yet Jesus had not attended either of the rabbinical theological schools in Jerusalem (Hillel, Shammai). He was not a rabbi in the technical sense, only a carpenter, and yet he surpassed the professional rabbis in the use of their own methods of debate. It is sometimes true today that unschooled men in various walks of life forge ahead of men of lesser gifts with school training. See the like puzzle of the Sanhedrin concerning Peter and John (Acts 4:13). This is not an argument against education, but it takes more than education to make a real man. Probably this sneer at Jesus came from some of the teachers in the Jerusalem seminaries. “Christ was in the eyes of the Jews a merely self-taught enthusiast” (Westcott). [source]
Acts 16:1 Timothy [Τιμοτεος]
Apparently a native of Lystra (“there,” εκει — ekei), his Hebrew mother named Eunice and grandmother Lois (2 Timothy 1:5) and his Greek father‘s name not known. He may have been a proselyte, but not necessarily so as Timothy was taught the Scriptures by his mother and grandmother (2 Timothy 3:15), and, if a proselyte, he would have had Timothy circumcised. It is idle to ask if Paul came on purpose to get Timothy to take Mark‘s place. Probably Timothy was about eighteen years of age, a convert of Paul‘s former visit a few years before (1 Timothy 1:2) and still young twelve years later (1 Timothy 4:12). Paul loved him devotedly (1 Timothy 1:3; 1 Timothy 5:23; 2 Timothy 3:15; Philemon 2:19.). It is a glorious discovery to find a real young preacher for Christ‘s work. [source]
Acts 20:32 I commend [παρατιτεμαι]
Present middle indicative of παρατιτημι — paratithēmi old verb to place beside, middle, to deposit with one, to interest as in 1 Timothy 1:18; 2 Timothy 2:2. Paul can now only do this, but he does it hopefully. Cf. 1 Peter 4:19. The word of his grace (τωι λογωι της χαριτος αυτου — tōi logōi tēs charitos autou). The instrumentality through preaching and the Holy Spirit employed by God. Cf. Colossians 4:6; Ephesians 4:29. Which is able to build up God works through the word of his grace and so it is able to build up (edify); a favourite Pauline word (1 Corinthians 3:10-14; 1 Corinthians 3:9; 2 Corinthians 5:1; Ephesians 2:20-22; 2 Timothy 3:15; etc.), and James 1:21. The very words “build” and “inheritance among the sanctified” will occur in Ephesians 1:11; Ephesians 3:18 and which some may recall on reading. Cf. Colossians 1:12. Stephen in Acts 7:5 used the word “inheritance” (κληρονομιαν — klēronomian), nowhere else in Acts, but in Ephesians 1:14, Ephesians 1:18; Ephesians 5:5. In Ephesians 1:18 the very expression occurs “his inheritance among the saints “ (την κληρονομιαν αυτου εν τοις αγιοις — tēn klēronomian autou en tois hagiois). [source]
Acts 20:32 Which is able to build up [τωι δυναμενωι οικοδομησαι]
God works through the word of his grace and so it is able to build up (edify); a favourite Pauline word (1 Corinthians 3:10-14; 1 Corinthians 3:9; 2 Corinthians 5:1; Ephesians 2:20-22; 2 Timothy 3:15; etc.), and James 1:21. The very words “build” and “inheritance among the sanctified” will occur in Ephesians 1:11; Ephesians 3:18 and which some may recall on reading. Cf. Colossians 1:12. Stephen in Acts 7:5 used the word “inheritance” (κληρονομιαν — klēronomian), nowhere else in Acts, but in Ephesians 1:14, Ephesians 1:18; Ephesians 5:5. In Ephesians 1:18 the very expression occurs “his inheritance among the saints “ (την κληρονομιαν αυτου εν τοις αγιοις — tēn klēronomian autou en tois hagiois). [source]
Romans 4:5 Believeth on Him [πιστεύοντι ἐπὶ τὸν]
The verb πιστεύω tobelieve is used in the New Testament as follows: 1. Transitively, with the accusative and dative: to entrust something to one, Luke 16:11; John 2:24. In the passive, to be entrusted with something, Romans 3:2; 1 Corinthians 9:17; Galatians 2:7. With the simple accusative, to believe a thing, John 11:26; 1 John 4:16. -DIVIDER-
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2. With the infinitive, Acts 15:11. -DIVIDER-
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3. With ὅτι that Matthew 9:28; Mark 11:24; James 2:19. Especially frequent in John: John 4:21; John 11:27, John 11:42; John 13:19; John 14:10, John 14:11; John 16:27, John 16:30, etc. -DIVIDER-
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4. With the simple dative, meaning to believe a person or thing, that they are true or speak the truth, John 2:22; John 4:21; John 5:46. See on John 1:12; see on John 2:22, John 2:23; see on John 8:31; see on John 10:37. -DIVIDER-
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5. With the preposition ἐν inNot frequent, and questioned in some of the passages cited for illustration. In John 3:15, ἐν αὐτῷ inHim, is probably to be construed with have eternal life. The formula occurs nowhere else in John. In Mark 1:15we find πιστεύετε ἐν τῷ εὐαγγελίῳ believein the gospel. The kindred noun πίστις faithoccurs in this combination. Thus Galatians 3:26, though some join in Christ Jesus with sons. See also Ephesians 1:15; Colossians 1:4; 1 Timothy 3:13; 2 Timothy 3:15; Romans 3:25. This preposition indicates the sphere in which faith moves, rather than the object to which it is directed, though instances occur in the Septuagint where it plainly indicates the direction of faith, Psalm 78:22; Jeremiah 12:6. -DIVIDER-
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6. With the preposition ἐπί uponon to, unto. a. With the accusative, Romans 4:5; Acts 9:42; Acts 11:17; Acts 16:31; Acts 22:19. The preposition carries the idea of mental direction with a view to resting upon, which latter idea is conveyed by the same preposition. b. With the dative, 1 Timothy 1:16; Luke 24:25; compare Romans 9:33; Romans 10:11; 1 Peter 2:6. The dative expresses absolute superposition. Christ as the object of faith, is the basis on which faith rests. -DIVIDER-
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7. With the preposition εἰς into Matthew 18:6; John 2:11; Acts 19:4; Romans 10:14; Galatians 2:16; Philemon 1:29, etc. The preposition conveys the idea of the absolute transference of trust from one's self to another. Literally the phrase means to believe into. See on John 1:12; see on John 2:23; see on John 9:35; see on John 12:44.Is counted for righteousness ( λογίζεται εἰς δικαιοσύνην )Rev., is reckoned. See on Romans 4:3. The preposition εἰς has the force of as, not the telic meaning with a view to, or in order that he may be (righteous); nor strictly, in the place of righteousness. Faith is not a substitute for righteousness, since righteousness is involved in faith. When a man is reckoned righteous through faith, it is not a legal fiction. He is not indeed a perfect man, but God does not reckon something which has no real existence. Faith is the germ of righteousness, of life in God. God recognizes no true life apart from holiness, and “he that believeth on the Son hath life.” He is not merely regarded in the law's eye as living. God accepts the germ, not in place of the fruit, but as containing the fruit. “Abraham believed God … . No soul comes into such a relation of trust without having God's investment upon it; and whatever there may be in God's righteousness - love, truth, sacrifice - will be rightfully imputed or counted to be in it, because, being united to Him, it will have them coming over derivatively from Him” (Bushnell). The idea of logical sequence is inherent in λογίζεται isreckoned - the sequence of character upon faith. Where there is faith there is, logically, righteousness, and the righteousness is from faith unto faith (Romans 1:17). Nevertheless, in the highest development of the righteousness of faith, it will remain true that the man is justified, not by the works of righteousness, which are the fruit of faith, but by the faith which, in making him a partaker of the life and righteousness of God, generates and inspires the works. Observe that the believer's own faith is reckoned as righteousness. “In no passage in Paul's writings or in other parts of the New Testament, where the phrase to reckon for or the verb to reckon alone is used, is there a declaration that anything belonging to one person is imputed, accounted, or reckoned to another, or a formal statement that Christ's righteousness is imputed to believers” (President Dwight, “Notes on Meyer”). -DIVIDER-
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[source]

1 Timothy 3:13 A good standing [βατμον καλον]
Late word from βαινω — bainō in lxx for steps at a door (1 Samuel 5:5). In plural the steps of a stair. In the inscriptions it means a good foothold or standing. The ecclesiastical writers (Theodoret) take it to be a higher grade or rank, but it is doubtful if Paul means that here. Much boldness (πολλην παρρησιαν — pollēn parrēsian). A Pauline phrase (2 Corinthians 3:12; 2 Corinthians 7:4; Philemon 1:20). In the faith which is in Christ Jesus Pauline phrase again (Acts 26:18; Galatians 3:26; Colossians 1:4; Ephesians 1:15; 2 Timothy 1:13; 2 Timothy 3:15). [source]
1 Timothy 3:13 In the faith which is in Christ Jesus [εν πιστει τηι εν Χριστωι Ιησου]
Pauline phrase again (Acts 26:18; Galatians 3:26; Colossians 1:4; Ephesians 1:15; 2 Timothy 1:13; 2 Timothy 3:15). [source]
2 Timothy 3:16 For doctrine [πρὸς διδασκαλίαν]
Better, teaching. Comp. to make thee wise, 2 Timothy 3:15. [source]
2 Peter 1:16 Cunningly devised [σεσοφισμένοις]
Only here and 2 Timothy 3:15, in which latter passage it has a good sense, to make thee wise. Here, in a bad sense, artfully framed by human cleverness ( σοφία )Compare feigned words, 2 Peter 2:3. [source]
2 Peter 1:16 Cunningly devised fables [σεσοπισμενοις μυτοις]
Associative instrumental case of μυτος — muthos (old term for word, narrative, story, fiction, fable, falsehood). In N.T. only here and the Pastoral Epistles (1 Timothy 1:4, etc.). Perfect passive participle of σοπιζω — sophizō old word (from σοπος — sophos), only twice in N.T., in causative sense to make wise (2 Timothy 3:15), to play the sophist, to invent cleverly (here) and so also in the old writers and in the papyri. Some of the false teachers apparently taught that the Gospel miracles were only allegories and not facts (Bigg). Cf. 2 Peter 2:3 for “feigned words.”When we made known unto you (εγνωρισαμεν υμιν — egnōrisamen humin). First aorist active indicative of γνωριζω — gnōrizō to make known unto you. Possibly by Peter himself.The power and coming These words can refer (Chase) to the Incarnation, just as is true of επιπανεια — epiphaneia in 2 Timothy 1:10 (second coming in 1 Timothy 6:14), and is true of παρουσια — parousia (2 Corinthians 7:6 of Titus). But elsewhere in the N.T. παρουσια — parousia (technical term in the papyri for the coming of a king or other high dignitary), when used of Christ, refers to his second coming (2 Peter 3:4, 2 Peter 3:12).But we were eye-witnesses (αλλ εποπται γενητεντες — all' epoptai genēthentes). First aorist passive participle of γινομαι — ginomai “but having become eye-witnesses.” Εποπται — Epoptai old word (from εποπτω — epoptō like εποπτευω — epopteuō in 1 Peter 2:12; 1 Peter 3:2), used of those who attained the third or highest degree of initiates in the Eleusinian mysteries (common in the inscriptions). Cf. αυτοπτης — autoptēs in Luke 1:2.Of his majesty Late and rare word (lxx and papyri) from μεγαλειος — megaleios (Acts 2:11), in N.T. only here, Luke 9:43 (of God); Acts 19:27 (of Artemis). Peter clearly felt that he and James and John were lifted to the highest stage of initiation at the Transfiguration of Christ. Emphatic εκεινου — ekeinou as in 2 Timothy 2:26. [source]

What do the individual words in 2 Timothy 3:15 mean?

and that from childhood the sacred writings you have known - being able you to make wise unto salvation through faith - in Christ Jesus
καὶ ὅτι ἀπὸ βρέφους [τὰ] ἱερὰ γράμματα οἶδας τὰ δυνάμενά σε σοφίσαι εἰς σωτηρίαν διὰ πίστεως τῆς ἐν Χριστῷ Ἰησοῦ

ὅτι  that 
Parse: Conjunction
Root: ὅτι  
Sense: that, because, since.
βρέφους  childhood 
Parse: Noun, Genitive Neuter Singular
Root: βρέφος  
Sense: an unborn child, embryo, a foetus.
ἱερὰ  sacred 
Parse: Adjective, Accusative Neuter Plural
Root: ἱερός  
Sense: sacred, consecrated to the deity, pertaining to God.
γράμματα  writings 
Parse: Noun, Accusative Neuter Plural
Root: γράμμα  
Sense: a letter.
οἶδας  you  have  known 
Parse: Verb, Perfect Indicative Active, 2nd Person Singular
Root: οἶδα  
Sense: to see.
τὰ  - 
Parse: Article, Accusative Neuter Plural
Root:  
Sense: this, that, these, etc.
δυνάμενά  being  able 
Parse: Verb, Present Participle Middle or Passive, Accusative Neuter Plural
Root: δύναμαι  
Sense: to be able, have power whether by virtue of one’s own ability and resources, or of a state of mind, or through favourable circumstances, or by permission of law or custom.
σοφίσαι  to  make  wise 
Parse: Verb, Aorist Infinitive Active
Root: σοφίζω  
Sense: to make wise, teach.
εἰς  unto 
Parse: Preposition
Root: εἰς  
Sense: into, unto, to, towards, for, among.
σωτηρίαν  salvation 
Parse: Noun, Accusative Feminine Singular
Root: σωτηρία  
Sense: deliverance, preservation, safety, salvation.
διὰ  through 
Parse: Preposition
Root: διά  
Sense: through.
πίστεως  faith 
Parse: Noun, Genitive Feminine Singular
Root: πίστις  
Sense: conviction of the truth of anything, belief; in the NT of a conviction or belief respecting man’s relationship to God and divine things, generally with the included idea of trust and holy fervour born of faith and joined with it.
τῆς  - 
Parse: Article, Genitive Feminine Singular
Root:  
Sense: this, that, these, etc.
Χριστῷ  Christ 
Parse: Noun, Dative Masculine Singular
Root: Χριστός  
Sense: Christ was the Messiah, the Son of God.
Ἰησοῦ  Jesus 
Parse: Noun, Dative Masculine Singular
Root: Ἰησοῦς  
Sense: Joshua was the famous captain of the Israelites, Moses’ successor.