Sorry, I meant to write that Jesus didn't die to change God's mind about us but came to change our mind about God. God didn't need a sacrifice of His Son. God loves us and forgives us. Jesus was killed bacause the Jewish priests were afraid of his popularity and Roman were threatened by his Kingdom. Jesus suffered and died to show us we too will suffer and die and that life does not end with death.  
The scriptures predate the church, we might have more scriptures if they didn't burn the ones that they didn't agree with.