Exodus 13:7-10

ISV(i) 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. 8 And you are to tell your child on that day, ‘This is because of what the LORD did for me when I came out of Egypt.’ 9 It is to be a sign for you on your hand and a reminder on your forehead, so that you may speak about the instruction of the LORD; for the LORD brought you out of Egypt with a strong show of force. 10 You are to keep this ordinance at its appointed time from year to year.”