Exodus 12:9-13

ISV(i) 9 Don’t eat any of it raw or boiled in water. Instead, roast it over the fire, with its head, legs, and internal organs. 10 Don’t leave any of it until morning, and whatever does remain of it until morning you are to burn in the fire.
11 “‘This is how you are to eat it: with your cloak tucked into your belt, your sandals on your feet, and your staff in your hand. You are to eat it hurriedly—it’s the LORD’s Passover. 12 I’ll pass through the land of Egypt that night and strike every firstborn in the land of Egypt, both people and animals. I’ll execute judgments on all the gods of Egypt. I am the LORD. 13 The blood will be a sign for you on the houses where you are. I’ll see the blood and pass over you. There will be no plague to destroy you when I strike the land of Egypt.