Christians believe it is hard to understand how really, really great God is and how truly wonderful it is that he sent his Son to live with people.
Scientists can explain a lot of things that are difficult to understand. However one thing that is difficult for even the cleverest people in the world to understand is how great God is.
People often understand things by looking at the world around them and learning more and more about what they see. But the Bible teaches that God is greater than anybody or anything so it is difficult to imagine just how great he is.
Christians believe God's greatness is just too big to imagine!