There is constant discussion online about who is in and who is out. There is discussion over certain issues that people conclude put people outside of fellowship because they have left the faith because a congregation has done, in their opinion, the unthinkable. Obviously, there are things that set apart Christians from the rest of the world. Not all religions are the same and yet there is variety within every religious group in the world.
Having said all of that what do you believe constitutes the non-negotiables of the Christian faith? The lines that once crossed put you outside the kingdom? What is it that makes that issue or decision on that level for you?/How do you defend that from Scripture?