Titus 1:9; Titus 1:13; Titus 2:1; Titus 2:2

Titus 1:9

9 He must hold firmly to the trustworthy message as it has been taught, so that he can encourage others by sound doctrine and refute those who oppose it.

Titus 1:13

13 This saying is true. Therefore rebuke them sharply, so that they will be sound in the faith

Titus 2:1

1 You, however, must teach what is appropriate to sound doctrine.

Titus 2:2

2 Teach the older men to be temperate, worthy of respect, self-controlled, and sound in faith, in love and in endurance.