Exodus 12:7-17

7 And they shall take of the blood and put it on the two side posts and on the upper door post of the houses in which they shall eat it.
8 And they shall eat the flesh in that night, roasted with fire, and unleavened bread; and with bitter herbs they shall eat it.
9 Eat none of it raw, nor boiled at all with water, but roast with fire, his head with his legs, and with the entrails thereof.
10 And ye shall let nothing of it remain until the morning; and that which remains of it until the morning ye shall burn with fire.
11 And thus shall ye eat it: with your loins girded, your shoes on your feet, and your staff in your hand; and ye shall eat it in haste: it is the LORD’s passover.
12 For I will pass through the land of Egypt this night and will smite all the firstborn in the land of Egypt, both among man and beast; and against all the gods of Egypt I will execute judgments: I am the LORD.
13 And this blood shall be to you for a sign upon the houses where ye are; and when I see the blood, I will pass over you, and the plague shall not be upon you to destroy you, when I smite the land of Egypt.
14 And this day shall be unto you for a memorial; and ye shall keep it as a feast unto the LORD throughout your ages; ye shall keep it a feast by an ordinance forever.
15 Seven days shall ye eat unleavened bread; even the first day ye shall put away leaven out of your houses, for whoever eats leavened bread from the first day until the seventh day, that soul shall be cut off from Israel.
16 And in the first day there shall be a holy convocation, and in the seventh day there shall be a holy convocation to you; no manner of work shall be done in them, except that which every person must eat, that only may be done of you.
17 And ye shall observe the feast of unleavened bread, for in this same day have I brought your hosts out of the land of Egypt; therefore, shall ye observe this day for your ages by an ordinance forever.