Exodus 13:5-7

New Revised Standard Version, Anglicised Catholic Edition

⁵ When the Lord brings you into the land of the Canaanites, the Hittites, the Amorites, the Hivites, and the Jebusites, which he swore to your ancestors to give you, a land flowing with milk and honey, you shall keep this observance in this month. ⁶ For seven days you shall eat unleavened bread, and on the seventh day there shall be a festival to the Lord. ⁷ Unleavened bread shall be eaten for seven days; no leavened bread shall be seen in your possession, and no leaven shall be seen among you in all your territory.