Relationship with religious/spiritual differences

My husband and I have been together for 10 years (married for almost 5 of those years). When we met neither of us were religious. I grew up Catholic, he grew up Presbyterian, but as adults neither of us were part of a religious belief system. Our wedding was secular with a few pagan traditions in it. So fast forward to today. We have a 1.5 year old and one on the way.

He’s been reading the Bible and the Torah and exploring his spirituality. I’m happy that these things are enlightening for him but they just do not interest me. I have no interest in reading the Bible or Torah. He wants me to read his notes and encourage him to study it by being interested in it and start new traditions in our household with him but I don’t care about reading the Bible. I get that giving our children traditions can be beneficial buuuut I’m having a hard time putting my heart into something that feels... forced? Not that he forcing me to do anything. But I feel bad when he says that no one cares to talk about the Bible and his viewpoints of it (which are very different from others). He’s not Christian and doesn’t believe in Christ as the messiah but he reads and interprets the teachings and readings in a more realistic and historical way and not as miracles. Anyway. He says I don’t care. And a part of me doesn’t. But I do care that he is feeling enlightened and spiritual, but it just doesn’t make me feel the same way. I feel like it’s becoming a problem in our relationship and I don’t know what to do.