12. “On that night I will go through the land of Egypt, killing every firstborn male, both human and animal, and punishing all the gods of Egypt. I am the Lord.
13. The blood on the doorposts will be a sign to mark the houses in which you live. When I see the blood, I will pass over you and will not harm you when I punish the Egyptians.
14. You must celebrate this day as a religious festival to remind you of what I, the Lord, have done. Celebrate it for all time to come.”