Titus 1:12-13

1:12 A certain one of them, in fact, one of their own prophets, said, “Cretans are always liars, evil beasts, lazy gluttons.” 1:13 Such testimony is true. For this reason rebuke them sharply that they may be healthy in the faith

Titus 2:8

2:8 and a sound message that cannot be criticized, so that any opponent will be at a loss, because he has nothing evil to say about us.

Titus 3:9

3:9 But avoid foolish controversies, genealogies, quarrels, and fights about the law, because they are useless and empty.