Therefore, let us celebrate the feast, not with the old yeast, the yeast of malice and wickedness, but with the unleavened bread of sincerity and truth.
For seven days you must eat unleavened bread. From the very first day you will have your houses clear of all leaven. For whoever eats leavened bread from the first day to the seventh will be cut off from Israel.
For seven days no leaven may be found in your houses; for anyone, a resident alien or a native, who eats leavened food will be cut off from the community of Israel.
For you, there will be singing as on a night when a feast is observed, And joy of heart as when one marches along with a flute Going to the mountain of the Lord, to the Rock of Israel.
Then they understood that he was not telling them to beware of the leaven of bread, but of the teaching of the Pharisees and Sadducees. Peter’s Confession About Jesus.
Meanwhile, so many people were crowding together that they were trampling one another underfoot. He began to speak, first to his disciples, “Beware of the leaven—that is, the hypocrisy—of the Pharisees. Courage Under Persecution.
For our boast is this, the testimony of our conscience that we have conducted ourselves in the world, and especially toward you, with the simplicity and sincerity of God, [and] not by human wisdom but by the grace of God.
Three times a year, then, all your males shall appear before the Lord, your God, in the place which he will choose: at the feast of Unleavened Bread, at the feast of Weeks, and at the feast of Booths. They shall not appear before the Lord empty-handed,
You shall not eat leavened bread with it. For seven days you shall eat with it only unleavened bread, the bread of affliction, so that you may remember as long as you live the day you left the land of Egypt; for in hurried flight you left the land of Egypt.
“Now, therefore, fear the Lord and serve him completely and sincerely. Cast out the gods your ancestors served beyond the River and in Egypt, and serve the Lord.