We are to choose our leaders (shepherds) based on their lifestyle. If they are living a godly lifestyle then we are to follow that and imitate it. We are not to choose them for any other reasons; not due to the size of their church or their charisma or what they say. The fruit of their life should be evident.
My former pastor said that if we heard, knew or even saw that he was cheating on his wife (that was a stronghold in his life previously) that we were to leave; not stay and pray for him, but to leave and pray for him. He said that if sin was in the camp then Satan was in the camp also.
I think too many people choose a pastor based on everything but the life that they are living. I’m fortunate enough to have had the wisdom to choose godly pastors as my shepherd.