Christ died once for our sins. An innocent person died for those who are guilty. Christ did this to bring you to God, when his body was put to death and his spirit was made alive.
Christ carried the burden of our sins. He was nailed to the cross, so we would stop sinning and start living right. By his cuts and bruises you are healed.
But Christ rescued us from the Law's curse, when he became a curse in our place. This is because the Scriptures say that anyone who is nailed to a tree is under a curse.
If all of you disobey one of my laws without knowing it, you must offer a bull as a sacrifice to please me, together with a grain sacrifice, a wine offering, and a goat as a sacrifice for sin.