For a bishop must be blameless, as the steward of God; not selfwilled, not soon angry, not given to wine, no striker, not given to filthy lucre; But a lover of hospitality, a lover of good men, sober, just, holy, temperate; Holding fast the faithful word as he hath been taught, that he may be able by sound doctrine both to exhort and to convince the gainsayers. 
(Tit 1:7-9 KJV)