Exodus 12:1-14
12:1 The LORD said to Moses and Aaron in the land of Egypt:

12:2 This month shall mark for you the beginning of months; it shall be the first month of the year for you.

12:3 Tell the whole congregation of Israel that on the tenth of this month they are to take a lamb for each family, a lamb for each household.

12:4 If a household is too small for a whole lamb, it shall join its closest neighbor in obtaining one; the lamb shall be divided in proportion to the number of people who eat of it.

12:5 Your lamb shall be without blemish, a year-old male; you may take it from the sheep or from the goats.

12:6 You shall keep it until the fourteenth day of this month; then the whole assembled congregation of Israel shall slaughter it at twilight.

12:7 They shall take some of the blood and put it on the two doorposts and the lintel of the houses in which they eat it.

12:8 They shall eat the lamb that same night; they shall eat it roasted over the fire with unleavened bread and bitter herbs.

12:9 Do not eat any of it raw or boiled in water, but roasted over the fire, with its head, legs, and inner organs.

12:10 You shall let none of it remain until the morning; anything that remains until the morning you shall burn.

12:11 This is how you shall eat it: your loins girded, your sandals on your feet, and your staff in your hand; and you shall eat it hurriedly. It is the passover of the LORD.

12:12 For I will pass through the land of Egypt that night, and I will strike down every firstborn in the land of Egypt, both human beings and animals; on all the gods of Egypt I will execute judgments: I am the LORD.

12:13 The blood shall be a sign for you on the houses where you live: when I see the blood, I will pass over you, and no plague shall destroy you when I strike the land of Egypt.

12:14 This day shall be a day of remembrance for you. You shall celebrate it as a festival to the LORD; throughout your generations you shall observe it as a perpetual ordinance.