δια-βεβαιόομαι, -οῦμαι to affirm confidently: Tit.3:8; before περί, 1Ti.1:7 (Cremer, 140).† (AS)
STRONG'S WORD STUDY
G1226 — διαβεβαιόω
diabebaioō · to insist · Greek
2 tagged verse occurrences
1 Timothy 1:7 · διαβεβαιοῦνται.¶Desiring to be teachers of the law; understanding neither what they say, nor whereof they affirm.Titus 3:8 · διαβεβαιοῦσθαι[This is] a faithful saying, and these things I will that thou affirm constantly, that they which have believed in God might be careful to maintain good works. These things are good and profitable unto men.