Exodus 12:23-30

23For 1the Lord will pass through to smite the Egyptians; and when He sees the blood on the lintel and on the two doorposts, the Lord will pass over the door and will 2not allow the 3destroyer to come in to your houses to smite you. 24And 4you shall observe this event as an ordinance for you and your children forever. 25When you enter the land which the Lord will give you, as He has 5promised, you shall observe this 6rite. 267And when your children say to you, ‘8What does this rite mean to you?’ 27you shall say, ‘It is a Passover sacrifice to 9the Lord 10who passed over the houses of the sons of Israel in Egypt when He smote the Egyptians, but 11spared our homes.’” 12And the people bowed low and worshiped.

28Then the sons of Israel went and did so; just as the Lord had commanded Moses and Aaron, so they did.

29Now it came about at 13midnight that 14the Lord struck all 15the firstborn in the land of Egypt, from the firstborn of Pharaoh who sat on his throne to the firstborn of the captive who was in the dungeon, and all the firstborn of 16cattle. 30Pharaoh arose in the night, he and all his servants and all the Egyptians, and there was 17a great cry in Egypt, for there was no home where there was not someone dead.