Re: Christian churches?
They're all different... sometimes it even depends on the individual minister. I was raised in a pretty liberal Methodist church in a small town (but I consider myself agnostic/atheist now), and as an individual church, we kind of turned a blind eye to certain "sins." The congregation didn't openly approve, but didn't openly disapprove, either. Like there were couples who lived together before they got married, or had a kid together before they got married. One of the two couples who led the youth group had an abortion before they got married. The music director was gay, and everybody knew it; his partner was a member of the congregation who fixed the organ when it broke.
But there was a woman who serially cheated on her husband. I don't know how long that went on, but when members of the congregation found out she made a pass at a church member, people became openly hostile towards her. She and her family had to leave and go to another church. They did come back to my parents' church about 15 years later... I don't know if she repented or what, but they're back. It may have something to do with the fact that the church member she tried to seduce had since passed away, and he had no surviving family--there was no one left to hold a grudge anymore, I suppose.
Now, while I was in college, they got a new minister (ministers are assigned by the overall church conference, and individual churches have no say in who they get) who was a real fire-n-brimstone preachers, and was very outspoken about the certain sins that members of the congregation preferred to overlook. He did NOT last long. The entire church mobilized against him, every "connection" that was had was called upon, every favor owed was cashed in, and they managed to get him reassigned within a year or two.
~Happily un-married since December 9, 2013~