Exodus 13:5-7

International Standard Version

⁵ When the Lord brings you to the land of the Canaanite, the Hittite, the Amorite, the Hivite, and the Jebusite, which he swore to your ancestors to give you—a land flowing with milk and honey—you are to observe this ritual in this month. ⁶ You are to eat unleavened bread for seven days, and on the seventh day there is to be a festival to the Lord. ⁷ Unleavened bread is to be eaten for seven days, and nothing leavened is to be seen among you, nor is leaven to be seen among you throughout your territory.