Exodus 12:10-14

10So let nothing of it remain until the morning. Whatever remains until the morning you are to burn with fire.

11Also you are to eat it this way: with your loins girded, your shoes on your feet and your staff in your hand. You are to eat it in haste. It is Adonai’s Passover.

12“For I will go through the land of Egypt on that night and strike down every firstborn, both men and animals, and I will execute judgments against all the gods of Egypt. I am Adonai.

13The blood will be a sign for you on the houses where you are. When I see the blood, I will pass over you. So there will be no plague among you to destroy you when I strike the land of Egypt.

14“This day is to be a memorial for you. You are to keep it as a feast to Adonai. Throughout your generations you are to keep it as an eternal ordinance.