 You see, the law that came from Moses couldnt help us. We were too weak. If we thought about some bad thing that we wanted to do, then we couldnt help ourselves, we just did it. That law just made us think about those bad things, and then we wanted to do them. But God set us free from all that. He sent his own son to us. Jesus had the same sort of body that we bad people have. Then God punished him instead of us. Jesus died instead of us. 