The sacrifices made in the Old Testament temple were integral in the worship of God the Creator. The sacrificial system and in particular the blood sacrifices are another sign or warning about the coming Savior.
“Get rid of the old yeast that you may be a new batch without yeast – as you really are. For Christ, our Passover lamb, has been sacrificed.” 1 Corinthians 5:7
The original Passover lambs were sacrificed under the direction of Moses in the final step for release from bondage. Their blood was smeared on the door frames of believing Jews to protect them from the Angel of Death. What similarities and differences are there, other than the spelling, between the Exodus 12 lambs and the 1 Corinthians 5 Lamb.