Strong G1651 ἐλέγχω elegchō · to rebuke

Titus

1. Titus 1:9
   Holding fast the faithful word as he hath been taught, that he may be able by sound doctrine both to exhort and to convince the gainsayers.
2. Titus 1:13
   This witness is true. Wherefore rebuke them sharply, that they may be sound in the faith;
3. Titus 2:15
   These things speak, and exhort, and rebuke with all authority. Let no man despise thee.