Neuter of hostis as conjunction; demonstrative, that (sometimes redundant); causative, because -- as concerning that, as though, because (that), for (that), how (that), (in) that, though, why.
see GREEK hostis
I. the substance or contents (of a statement), that;
1. joined to verbs of saying and declaring (where the accusative and infinitive is used in Latin): ἀναγγέλλειν, Acts 14:27; διηγεῖσθαι, Acts 9:27; εἰπεῖν, Matthew 16:20; Matthew 28:7, 13; John 7:42; John 16:15; 1 Corinthians 1:15; λέγειν, Matthew 3:9; Matthew 8:11; Mark 3:28; Luke 15:7; John 16:20; Romans 4:9 (T Tr WH omit; L brackets ὅτι); 2. in elliptical formulas (Buttmann, 358 (307); (Winer's Grammar, 585 (544) note)): τί ὅτι etc., equivalent to τί ἐστιν ὅτι (A. V. how is it that), wherefore? Mark 2:16 R G L (others omit τί; cf. 5 below, and see ὅστις, 4); Luke 2:49; Acts 5:4, 9. οὐχ ὅτι for οὐ λέγω ὅτι, our not that, not as though, cf. Buttmann, § 150, 1; (Winer's Grammar, 597 (555)); thus, John 6:46; John 7:22; 2 Corinthians 1:24; 2 Corinthians 3:5; Philippians 3:12; Philippians 4:11. ὅτι is used for εἰς ἐκεῖνο ὅτι (in reference to the fact that (English seeing that, in that")): thus in John 2:18; (Meyer (see his note on 1 Corinthians 1:26) would add many other examples, among them John 9:17 (see below)); for ἐν τούτῳ ὅτι, Romans 5:8; for περί τούτου ὅτι, concerning this, that: so after λαλεῖν, Mark 1:34; Luke 4:41 (others take ὅτι, in these examples and those after διαλογ. which follow in a causal sense; cf. Winer's Grammar, as below (Ellicott on 2 Thessalonians 3:7)); after λέγειν, John 9:17 (see above); after διαλογίζεσθαι, Matthew 16:8; Mark 8:17 (after ἀποστέλλειν σπιστολας, 1 Macc. 12:7). See examples from classic authors in Fritzsche on Matthew, p. 248f; (Meyer, as above; cf. Winer's Grammar, § 53, 8b.). 3. Noteworthy is the attraction, not uncommon, by which the noun that would naturally be the subject of the subjoined clause, is attracted by the verb of the principal clause and becomes its object (cf. Winer's Grammar, § 66, 5; B § 151, 1 a.); as, οἴδατε τήν οἰκίαν Στεφανᾶ, ὅτι ἐστιν ἀπαρχή, for οἴδατε, ὅτι ἡ οἰκία Στεφανᾶ, κτλ., 1 Corinthians 16:15; also after εἰδέναι and ἰδεῖν, Mark 12:34; 1 Thessalonians 2:1; so after other verbs of knowing, declaring, etc.: Matthew 25:24; John 9:8; Acts 3:10; Acts 9:20; 1 Corinthians 3:20; 2 Thessalonians 2:4; Revelation 17:8, etc.; ὅν ὑμεῖς λέγετε ὅτι Θεός ὑμῶν ἐστι, for περί οὐ (cf. Luke 21:5) ὑμεῖς λέγετε ὅτι, John 8:54. 4. As respects construction, ὅτι is joined in the N. T. a. to the indicative even where the opinion of another is introduced, and therefore according to classical usage the optative should have been used; as, διεστείλατο ... ἵνα μηδενί εἴπωσιν, ὅτι αὐτός ἐστιν ὁ Χριστός, Matthew 16:20; add, b. to that subjunctive after ὀυτ μή which differs scarcely at all from the future (see μή, IV. 2, p. 411a; (cf. Winer's Grammar, 508 (473))): Matthew 5:20; Matthew 26:29 (R G; others omit ὅτι); Mark 14:25; Luke 21:32; John 11:56 (where before ὅτι supply δοκεῖτε, borrowed from the preceding δοκεῖ); but in Romans 3:8 ὅτι before ποιήσωμεν (hortatory subjunctive (cf. Winers Grammar, § 41 a. 4 a.; Buttmann, 245 (211))) is recitative (see 5 below), depending on λέγουσι (Winers Grammar, 628 (583); Buttmann, § 141, 3). c. to the infinitive, by a mingling of two constructions, common even in classic Greek, according to which the writer beginning the construction with ὅτι falls into the construction of the accusative with an infinitive: Acts 27:10; cf. Winers Grammar, 339 (318) N. 2; (sec. 63, 2c.; Buttmann, 383 (328)). On the anacoluthon found in 1 Corinthians 12:2, according to the reading ὅτι ὅτε (which appears in the Sinaiticus manuscript also (and is adopted by L brackets T Tr WH (yet cf. their note))), cf. Buttmann, 383f (328f). 5. ὅτι is placed before direct discourse (`recitative' ὅτι) (Buttmann,sec. 139, 51; Winer's Grammar, § 65, 3 c.; § 60, 9 (and Moulton's note)): Matthew 2:23(?); II. the reason why anything is said to be or to be done, because, since, for that, for (a causal conjunc.; Latinquod,quia,quom,nam); (on the difference between it and γάρ cf. Westcott, Epistles of John, p. 70); a. it is added to a speaker's words to show what ground he gives for his opinion; as, μακάριος etc. ὅτι, Matthew 5:4-12; Matthew 13:16; Luke 6:20; Luke 14:14; after οὐαί, Matthew 11:21; Matthew 23:13-15, 23, 25, 27, 29; Luke 6:24; Luke 10:13; Luke 11:42-44, 46, 52; Jude 1:11; cf. further, Matthew 7:13; Matthew 17:15; Matthew 25:8; Mark 5:9; Mark 9:38 (G Tr marginal reading omit; Tr text brackets the clause); Luke 7:47; Luke 23:40; John 1:30; John 5:27; John 9:16; John 16:9-11, 14, 16 (T Tr WH omit; L brackets the clause); Acts 1:5, and often; — or is added by the narrator, to give the reason for his own opinion: Matthew 2:18; Matthew 9:36; Mark 3:30; Mark 6:34; John 2:25; Acts 1:17; — or, in general, by a teacher, and often in such a way that it relates to his entire statement or views: Matthew 5:43; 1 John 4:18; 2 John 1:7; Revelation 3:10. b. ὅτι makes reference to some word or words that precede or immediately follow it (cf. Winers Grammar, § 23, 5; § 53, 8 b.; Buttmann, § 127, 6); as, διά τοῦτο, John 8:47; John 10:17; John 12:39; 1 John 3:1, etc. διά τί; Romans 9:32; 2 Corinthians 11:11. χάριν τίνος; 1 John 3:12. οὕτως, Revelation 3:16. ἐν τούτῳ, 1 John 3:20. ὅτι in the protasis, John 1:50( III. On the combination ὡς ὅτι see ὡς, I. 3. STRONGS NT 3754: ὅτι (interrog) [ὅτι (interrog) interrogative, i. e. ὁ, τί or ὁ τί, see ὅστις, 4 (and at the beginning).) ὅστις, 4 (and at the beginning).]