Exodus 13:7-9

Complete Jewish Bible

⁷ Matzah is to be eaten throughout the seven days; neither hametz nor leavening agents are to be seen with you throughout your territory. ⁸ On that day you are to tell your son, ‘It is because of what Adonai did for me when I left Egypt.’

⁹ “Moreover, it will serve you as a sign on your hand and as a reminder between your eyes, so that Adonai’s Torah may be on your lips; because with a strong hand Adonai brought you out of Egypt.