The appearance of an angry God in the Old Testament was necessary for the people at that time
When we read the Old Testament we are sometimes given a view of God being angry or jealous. Let it be clearly said: God is never angry. God is pure unending love and wisdom and completely incapable of having anything but love towards us. The appearance of an angry God in the Old Testament was necessary for the people at that time. That was the only image of God they were able to respond to at that point. They projected this image of the Lord because fear was in their hearts. The Lord loves you completely and never wishes any harm on you. There is a beautiful passage in the Writings for the New Church that says the Lord can't even turn His face from us or frown on us.