Unlawful Marriages

Mark 6:18 reads "For John had said unto Herod, It is not lawful for thee to have thy brother's wife." Does anybody think John thought it was okay to keep Herodias as his wife when he (John) said the marriage was unlawful? Yet 99% of congregations today allow this very thing. Many of the members are in their second or third marriages and nothing is ever said or done about it (I Cor 5:11). Adulterous marriages are just allowed to continue. If you don't think it's happening in the congregation you worship with, then just ask around a little bit.People are just playing games with religion.Why not find a congregation that doesn't allow such? There are still a few around you know.