My best friend of 30+ years got on the phone with me and put me on speaker phone so her very religious husband could sway me. Wasn't going to work. I ended up hanging up on the both of them and refused to speak to her for two weeks. We are still close, but I made damn sure to set up a boundary that religion is not to be talked about when we visit or talk to each other.
Disclaimer: I am only responsible for what I say, not what you choose to understand.