Lexicon :: Strong's G1302 - diati

διατί, see διά, B. II. 2 a., p. 134^b.
2. of the reason or cause on account of which anything is or is done, or ought to be done; on account of, because of;
a. in the phrases διὰ τοῦτο, for this cause; for this reason; therefore; on this account; since this is so: Matthew 6:25; Matthew 12:27, 31; Matthew 13:13, etc.; Mark 6:14; Mark 11:24; Luke 11:49; Luke 14:20; John 6:65; John 9:23; Acts 2:26; Romans 1:26; Romans 4:16; Romans 5:12; Romans 13:6; Romans 15:9; 1 Corinthians 4:17; 1 Corinthians 11:10, 30; 2 Corinthians 4:1; Ephesians 1:15; Ephesians 5:17; Ephesians 6:13; Colossians 1:9; 1 Thessalonians 2:13; 1 Thessalonians 3:5, 7; 2 Thessalonians 2:11; 2 Timothy 2:10; Hebrews 1:9; Hebrews 2:1; 1 John 4:5; 3 John 1:10; Revelation 7:15; Revelation 12:12; Revelation 18:8. followed by ὅτι, for this cause... because, therefore... because: John 5:16, 18; John 8:47; John 10:17; John 12:18, 39; 1 John 3:1; cf. Tholuck edition 7 on John 10:17 [he questions, at least for John 10:17 and John 12:39, the canon of Meyer (on John 12:39), Luthardt (on John 10:17), others, that in this phrase in John the τοῦτο always looks backwards] in the opposite order (when the words that precede with ὅτι are to be emphasized): John 15:19. It indicates the end and purpose, being followed either by ἵνα, 2 Corinthians 13:10; 1 Timothy 1:16; Philemon 1:15, (in the opposite order, John 1:31); or by ὅπως, Hebrews 9:15. διὰ τί [so L Tr WH] and written together διατί [so G T; cf. Winers Grammar, 45; Lipsius, Gram. Unters., p. 126], why? wherefore? Matthew 9:11, 14; Matthew 13:10; Matthew 17:19; Mark 2:18; Luke 5:30; John 7:45; Acts 5:3; Romans 9:32; 1 Corinthians 6:7; Revelation 17:7. δἰ ἥν αἰτίαν, see αἰτία, 1. τίς ἡ αἰτία, δἰ ἥν, Acts 10:21; Acts 23:28; διὰ ταύτην τὴν αἰτίαν, Acts 28:20; διὰ ταῦτα, Ephesians 5:6, etc.

BLB Scripture Index of Thayer's