an elder must be without fault; he must have only one wife, and his children must be believers and not have the reputation of being wild or disobedient. 1
References for Titus 1:6
1.6-9 1 Ti 3.2-7.
For since a church leader is in charge of God's work, he should be without fault. He must not be arrogant or quick-tempered, or a drunkard or violent or greedy for money.
He must be hospitable and love what is good. He must be self-controlled, upright, holy, and disciplined.
He must hold firmly to the message which can be trusted and which agrees with the doctrine. In this way he will be able to encourage others with the true teaching and also to show the error of those who are opposed to it.