Thank you so much for your input Bill3.
I don't know why I was dumb enough to respond to that guy's questions about churchy things, but I seriously considered ignoring him, which was a possibility with a text message conversation like this one.
Sounds like you have read me like a book here, as I've already had to remind him twice of my not-so-great experience with religious stuff :/
I completely agree with you on this potential response, this conversation happened a couple of weeks ago, so I've had enough time to think about this but hopefully I'm not too far gone in letting him know about these boundaries of mine.
I do like him as a friend, we've had a couple of birthday celebrations together and we've done several sporting events with each other. But I'll only continue being his friend as long as he's not pushy with my triggering topics.