Unleavened bread is a seven day memorial Feast which begins on the 15th day of the Nisan which is a High Sabbath and ends on the 21st day of the month of Nisan which is also a High Sabbath. We observe this Appointed Time by removing all of the chametz (hametz) from our homes as commanded in Exodus 12:14-15, Leviticus 23:6-8 and many other verses. At Brit Ahm we also recognize that the search for chametz is more than a search for physical yeast but that yeast was used a a symbol of sin within each of us which results in malice and wickedness as we read in 1 Corinthians 5:6-8.
“This day is to be a memorial for you. You are to keep it as a feast to Adonai. Throughout your generations you are to keep it as an eternal ordinance. For seven days you are to eat matzot, but on the first day you must remove hametz from your houses, for whoever eats hametz from the first day until the seventh day, that soul will be cut off from Israel...During the first month in the evening of the fourteenth day of the month, you are to eat matzot, until the evening of the twenty-first day of the month. For seven days no hametz is to be found in your houses, for whoever eats hametz, that soul will be cut off from the congregation of Israel, whether he is an outsider or one who is born in the land. You are to eat no hametz; in all your houses you are to eat matzot.” Exodus 12:14-15, 18-20 TLV
“On the fifteenth day of the same month is the Feast of Matzot to Adonai. For seven days you are to eat matzah. On the first day you are to have a holy convocation and you should do no regular work. Instead you are to present an offering made by fire to Adonai for seven days. On the seventh day is a holy convocation, when you are to do no regular work.” Leviticus 23:6-8 TLV
“Your boasting is no good. Don’t you know that a little hametz leavens the whole batch of dough? Get rid of the old hametz, so you may be a new batch, just as you are unleavened—for Messiah, our Passover Lamb, has been sacrificed. Therefore let us celebrate the feast not with old hametz, the hametz of malice and wickedness, but with unleavened bread—the matzah of sincerity and truth.” 1 Corinthians 5:6-8 TLV