Titus 1:9

7For the overseer must be blameless, as God’s steward, not self-pleasing, not easily angered, not given to wine, not violent, not greedy for dishonest gain;

8but given to hospitality, a lover of good, sober minded, fair, holy, self-controlled,

9holding to the faithful word which is according to the teaching, that he may be able to exhort in the sound doctrine, and to convict those who contradict him.

10For there are also many unruly men, vain talkers and deceivers, especially those of the circumcision,

11whose mouths must be stopped: men who overthrow whole houses, teaching things which they ought not, for dishonest gain’s sake.