The OT sacrificial system was a dress rehearsal for the cross. Israel given the law → failed repeatedly → sacrifices provided forgiveness and fellowship. Jesus fulfills this: lives a perfect life, dies sacrificially in our place (Matthew 26:28 — blood of the covenant poured out for forgiveness of sins), and rises from the dead as proof of victory and eternal life.

The OT law showed Israel they were moral failures. Sacrifices provided temporary forgiveness. Jesus fulfills the picture: perfect life → substitutionary death → resurrection. Matthew 26:28: "this is my blood of the covenant, poured out for many for the forgiveness of sins." The resurrection is proof of concept — demonstrating that eternal life and victory over death are real.