He must hold firm to the trustworthy word as taught, so that he may be able to give instruction in sound doctrine and also to rebuke those who contradict it.

This testimony is true. Therefore rebuke them sharply, that they may be sound in the faith,

Teach Sound Doctrine

But as for you, teach what accords with sound doctrine.

Older men are to be sober-minded, dignified, self-controlled, sound in faith, in love, and in steadfastness.

and sound speech that cannot be condemned, so that an opponent may be put to shame, having nothing evil to say about us.