Lines Mike will not cross for ecumenism: false gospel and sexual ethics compromise

Galatians 1 ('let him be accursed') establishes the line: anyone preaching a gospel other than grace alone through faith alone. Mike would divide over any church adding works to the gospel. He also cites churches embracing same-sex marriage and ordaining LGBT clergy as representing substantial compromise — not an essential doctrine in itself, but it signals a pattern of telling people not to repent of things God commands repentance of, which hinders the gospel.