“Are there two different gospels?”

Are there two different Gospels? Why did Paul warn Timothy about people who have a form of godliness with no power to it? Is a person automatically sanctified if their spouse is a believer? I have a friend who is living with her boyfriend. Should I consider “not even eating with such a person”? What did Paul mean by that?

Tags: do not eat, form of godliness, Gospel, immoral person, marriage, no power, one baptism, one faith, one Lord, Paul, sanctified