The saying is sure: whoever aspires to the office of bishop desires a noble task. Now a bishop must be above reproach, married only once, temperate, sensible, respectable, hospitable, an apt teacher, not a drunkard, not violent but gentle, not quarrelsome, and not a lover of money. He must manage his own household well, keeping his children submissive and respectful in every way—for if someone does not know how to manage his own household, how can he take care of God's church? He must not be a recent convert, or he may be puffed up with conceit and fall into the condemnation of the devil. Moreover, he must be well thought of by outsiders, so that he may not fall into disgrace and the snare of the devil. (1 Timothy 3:1-7, NRSV)
This is a true saying, if a man desire the office of a bishop, he desireth a good work. A bishop then must be blameless, the husband of one wife, vigilant, sober, of good behaviour, given to hospitality, apt to teach; Not given to wine, no striker, not greedy of filthy lucre; but patient, not a brawler, not covetous; One that ruleth well his own house, having his children in subjection with all gravity; (For if a man know not how to rule his own house, how shall he take care of the church of God?) Not a novice, lest being lifted up with pride he fall into the condemnation of the devil. Moreover he must have a good report of them which are without; lest he fall into reproach and the snare of the devil. (1 Timothy 3:1-7, KJV)
Morality is tied to leadership for the Pastor. If someone wants to lead the group, he better be on the up and up. His rules are pretty stringent and designed to make Christians look like good and upstanding citizens to outsiders.