Exodus 12:19-21

Common English Bible

¹⁹ For seven days no yeast should be found in your houses because whoever eats leavened bread will be cut off from the Israelite community, whether the person is an immigrant or a native of the land. ²⁰ You should not eat anything made with yeast in all your settlements. You should eat only unleavened bread.”

²¹ Then Moses called together all of Israel’s elders and said to them, “Go pick out one of the flock for your families, and slaughter the Passover lamb.