Exodus 13:6

3 Moses said to the people, “Remember this day, in which you came out of Egypt, out of the house of bondage; for by strength of hand the LORD brought you out from this place. No leavened bread shall be eaten.

4 Today you go out in the month Abib.

5 It shall be, when the LORD brings you into the land of the Canaanite, and the Hittite, and the Amorite, and the Hivite, and the Jebusite, which he swore to your fathers to give you, a land flowing with milk and honey, that you shall keep this service in this month.

6 Seven days you shall eat unleavened bread, and in the seventh day shall be a feast to the LORD.

7 Unleavened bread shall be eaten throughout the seven days; and no leavened bread shall be seen with you. No yeast shall be seen with you, within all your borders.

8 You shall tell your son in that day, saying, ‘It is because of that which the LORD did for me when I came out of Egypt.’

9 It shall be for a sign to you on your hand, and for a memorial between your eyes, that the LORD’s law may be in your mouth; for with a strong hand the LORD has brought you out of Egypt.