We tend not to give second chances to the people who sin against us. We harbor resentment, foster suspicion, and fear being hurt again. Thankfully, God is not like us. He is the God of second chances who shows mercy to undeserving people whom He knows will sin against Him again. He is able to do this (and yet remain just) through the sacrifice of a Mediator who took the guilt of our sin upon Himself so that we might know the grace of God.