Exodus 13:8 WEB

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

⁷  Unleavened bread shall be eaten throughout the seven days; and no leavened bread shall be seen with you, neither shall there be yeast seen with you, in all your borders.

⁸  You shall tell your son in that day, saying, 'It is because of that which Yahweh did for me when I came forth out of Egypt.'

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

¹⁰  You shall therefore keep this ordinance in its season from year to year.