Husband is suddenly religious

Hi, on my throwaway. The title says it all I guess. He is suddenly on a path to being religious (christian) after we both met as agnostic and not being for religion. We’ve been together for 6 years and married for 3. I’m concerned that this will eventually drive a wedge between our marriage as I have no intention in joining him on this path or journey aside from supporting him if this is something he truly believes in. He has no expectation of me joining him but I get uncomfortable when he prays before eating, before bed, praying for me, and the long church services. I used to be religious as a child if that matters, and have no want or need to be as an adult. Has anyone else experienced something like this in their marriage? How did you navigate it? I see my therapist on Sunday so i’ll be speaking to her about this as well. I just have no idea how to bring up my feelings/concerns without tainting his newfound view/path on christianity.