Jesus took our punishment upon Himself to pay for our sins and reconcile us to God.

"Christ suffered for our sins once for all time. He never sinned, but he died for sinners to bring you safely home to God. He suffered physical death, but he was raised to life in the Spirit."
-1 Peter 3:18 NLT

"But he was pierced for our rebellion,
    crushed for our sins.
He was beaten so we could be whole.
    He was whipped so we could be healed.
All of us, like sheep, have strayed away.
    We have left God’s paths to follow our own.
Yet the Lord laid on him
    the sins of us all."
-Isaiah 53:5-6 NLT