Exodus 12:7-13

7They will take some of the blood and put it on the two side posts and top of the doorframe of the houses where they will eat it.

8They will eat the meat the same night; they will eat it roasted over the fire with bread made without yeast and with bitter herbs.

9Do not eat it raw or boiled in water, but roast it over the fire with its head, its legs, and its entrails.

10You must leave nothing until morning, but you must burn with fire whatever remains of it until morning.

11This is how you are to eat it – dressed to travel, your sandals on your feet, and your staff in your hand. You are to eat it in haste. It is the Lord’s Passover.

12I will pass through the land of Egypt in the same night, and I will attack all the firstborn in the land of Egypt, both of humans and of animals, and on all the gods of Egypt I will execute judgment. I am the Lord.

13The blood will be a sign for you on the houses where you are, so that when I see the blood I will pass over you, and this plague will not fall on you to destroy you when I attack the land of Egypt.