Exodus 12:13-15

International Standard Version

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.

¹⁴ “‘This day is to be a memorial for you, and you are to celebrate it as a festival to the Lord. You are to celebrate it as a perpetual ordinance from generation to generation. ¹⁵ You are to eat unleavened bread for seven days. On the first day be sure to remove all the leaven from your houses, because any person who eats anything leavened from the first day until the seventh will be cut off from Israel.