18 You are to eat unleavened bread in the first month, from the evening of the fourteenth day of the month until the evening of the twenty-first day.
19 Yeast must not be found in your houses for seven days. If anyone eats something leavened, that person, whether a foreign resident or native of the land, must be cut off from the community of Israel.
20 Do not eat anything leavened; eat unleavened bread in all your homes.”
21 Then Moses summoned all the elders of Israel and said to them, “Go, select an animal from the flock according to your families, and slaughter the Passover animal.
22 Take a cluster of hyssop, dip it in the blood that is in the basin, and brush the lintel and the two doorposts with some of the blood in the basin. None of you may go out the door of his house until morning.
23 When the Lord passes through to strike Egypt and sees the blood on the lintel and the two doorposts, He will pass over the door and not let the destroyer enter your houses to strike you.
24 “Keep this command permanently as a statute for you and your descendants.