How to Know That God Is All Love and Kindness

Christianity has this is its source well he doesn't write off the bat so after he points out that there thesis is that God is love based on first John 4 8 and 16. He goes surely not through nature for its full of horrors again remember what they just came through yeah it's full of horrors right human suffering is a real thing and it's unpleasant. The Bible comes in with a very reformed friends man sort of reformed sort of approach to this and God must have something to do with it.