Where are the qualifications of an elder listed in the New Testament?

Answer 1

(Titus 1:5-9) . . .make appointments of older men in city after city, as I gave you orders; if there is any man free from accusation, a husband of one wife, having believing children that were not under a charge of debauchery nor unruly. For an overseer must be free from accusation as God's steward, not self-willed, not prone to wrath, not a drunken brawler, not a smiter, not greedy of dishonest gain, but hospitable, a lover of goodness, sound in mind, righteous, loyal, self-controlled, holding firmly to the faithful word as respects his [art of] teaching, that he may be able both to exhort by the teaching that is healthful and to reprove those who contradict.

(1 Timothy 3:1-7) . . .That statement is faithful. If any man is reaching out for an office of overseer, he is desirous of a fine work. The overseer should therefore be irreprehensible, a husband of one wife, moderate in habits, sound in mind, orderly, hospitable, qualified to teach, not a drunken brawler, not a smiter, but reasonable, not belligerent, not a lover of money, a man presiding over his own household in a fine manner, having children in subjection with all seriousness; (if indeed any man does not know how to preside over his own household, how will he take care of God's congregation?) not a newly converted man, for fear that he might get puffed up [with pride] and fall into the judgment passed upon the Devil. Moreover, he should also have a fine testimony from people on the outside, in order that he might not fall into reproach and a snare of the Devil.