Exodus 12:18-20

The Passover Instituted

¹⁸In the first month, on the fourteenth day of the month at evening, you shall eat unleavened bread, until the twenty-first day of the month at evening. ¹⁹For seven days no leaven shall be found in your houses, since whoever eats what is leavened, that same person shall be cut off from the congregation of Israel, whether he is a stranger or a native of the land. ²⁰You shall eat nothing leavened; in all your dwellings you shall eat unleavened bread.’ ”