Exodus 12:1-14
New King James Version (NKJV)

The Passover Instituted
12 Now the Lord spoke to Moses and Aaron in the land of Egypt,
saying, 2 “This month shall be your beginning of months; it shall
be the first month of the year to you. 3 Speak to all the congregation of
Israel, saying: ‘On the tenth of this month every man shall take for himself a lamb, according to
the house of his father, a lamb for a household. 4 And if the household
is too small for the lamb, let him and his neighbor next to his house
take it according to the number of the persons; according to each man’s need you
shall make your count for the lamb. 5 Your lamb shall be without blemish, a male of the
first year. You may take it from the sheep or from the goats. 6 Now you
shall keep it until the fourteenth day of the same month. Then the whole assembly of the
congregation of Israel shall kill it at twilight. 7 And they shall
take some of the blood and put it on the two doorposts and on the
lintel of the houses where they eat it.8 Then they shall eat the flesh on that night; roasted
in fire, with unleavened bread and with bitter herbs they shall
eat it. 9 Do not eat it raw, nor boiled at all with water, but roasted in fire—its head
with its legs and its entrails. 10 You shall let none of it remain until morning, and what
remains of it until morning you shall burn with fire. 11 And thus you shall eat
it: with a belt on your waist, your sandals on your feet, and your staff in your
hand. So you shall eat it in haste. It is the Lord’s Passover.

12 ‘For I will pass through the land of Egypt on that night, and will strike all the firstborn
in the land of Egypt, both man and beast; and against all the gods of Egypt I will execute judgment:
I am the Lord. 13 Now the blood shall be a sign for you on the
houses where you are. And when I see the blood, I will pass over you; and the
plague shall not be on you to destroy you when I strike the land of Egypt.

14 ‘So this day shall be to you a memorial; and you shall keep it as a feast to
the Lord throughout your generations. You shall keep it as a feast by an everlasting
ordinance.