9 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.
13 This testimony is true. Therefore rebuke them sharply, that they may be sound in the faith,
2:1 But as for you, teach what accords with sound doctrine.
2 Older men are to be sober-minded, dignified, self-controlled, sound in faith, in love, and in steadfastness.