Exodus 12:18-20

New American Standard Bible

^18 (A)In 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. ¹⁹ For ^(B)seven days there shall be no dough with yeast found in your houses; for whoever eats anything with yeast, that ^[a](C)person shall be cut off from the congregation of Israel, whether he is a stranger or a native of the land. ²⁰ You shall not eat anything with yeast; in all your dwellings you shall eat unleavened bread.’”