What did the blood of lambs do? It turned away God’s wrath and appeased His anger against sin. It satisfied His justice. The blood of lambs caused God to pass over each house–for a time. The blood satisfied on the night of the Passover, but each year the sacrifices of the lambs had to be made anew. Every year, the sounds of the slaughter of lambs for sacrifices could be heard. For this reason, Israel always longed for an unblemished male lamb who would take away sin once and for all; the One about whom God would say finally, “When I see the blood, I will pass over you forever.”
When the Lord Jesus Christ came on the scene, He was announced as the Lamb of God who not only takes away our sin (John 1:29) but also turns away God’s wrath against us. In fact, 1 Corinthians 5:7 states it plainly to us: “Christ, our Passover lamb, has been sacrificed.”
— Anthony Carter, Blood Work: How the Blood of Christ Accomplishes Our Salvation, 12.