Exodus 13:8–10

8 yYou shall tell your son on that day, ‘It is because of what the Lord did for me when I came out of Egypt.’ 9 And it shall zbe to you as a sign on your hand and as aa memorial zbetween your eyes, that the law of the Lord may be in your mouth. For with a strong hand the Lord has brought you out of Egypt. 10 bYou shall therefore keep this statute at its appointed time from year to year.