Christ is the image of the invisible God. He is the Second Person of the Trinity, the Creator, the one who is preeminent over all things. Because Christ is supreme over all, we can be assured that His shed blood on the cross redeems us from our sin condition. His suffering and death reconciles us to God, regardless of our sin. Who else would we look to for this assurance? To an angel? To yourself? No, we are to look to God Himself in Christ.