Titus 1:10-11

There are many who are insubordinate, who talk without having anything to say, and who deceive: especially Jewish believers who insist that Gentile believers must be circumcised. Their mouths must be stopped. They subvert entire families, teaching things they must not teach. And why? For dishonest money! One of their own, a teacher, said, "Cretans are always liars, evil brutes, and idle gluttons." Since this is true, rebuke them sharply so that they may be sound in the faith. They must not hold onto Jewish legends or the commandments of men who turn away from the truth.