Dorothy Day said this quote

I don't think God is so jealous about our worship of Him that He will want to separate those who serve His purposes, serve His goodness, because they have read a book, even one written by an atheist, and have been moved, or because they have wanted to be fair all their lives, but have never stepped in a church, from those who have heard God's words in church or read His words in the Bible and become convinced by them.