Mark 10:9-12 NIV - Therefore what God has joined together, - Bible Gateway Mark 10:9-12 New International Version (NIV) 9 Therefore what God has joined together, let no one separate. 10 When they were in the house again, the disciples asked Jesus about this. 11 He answered, Anyone who divorces his wife and marries another woman commits adultery against her. 12 And if she divorces her husband and marries another man, she commits adultery. Exodus 20:14 NIV - You shall not - Bible Gateway Exodus 20:14 New International Version (NIV) 14 You shall not commit adultery. The first quote is from Jesus in the New Testament, so there's no getting around it, no gray area, no need for interpretation. Are you ok with a church performing someone's 2nd+ marriage, that wasn't to his/her original wife/husband?