Exodus 12:26,27 (KJV)
26 And it shall come to pass, when your children shall say unto you, What mean ye by this service?
27 That ye shall say, It is the sacrifice of the Lord’s passover, who passed over the houses of the children of Israel in Egypt, when he smote the Egyptians, and delivered our houses. And the people bowed the head and worshipped.
Exodus 12
The First Passover
The blood that was shed from spotless lambs was in preparation for the Lamb of God, who would shed His blood for our sins.
Deliverance From The Enemy
The day that the Lord God came in and sent His last plague upon the Egyptian people, the people of Israel were able to experience true freedom.