Exodus 12:19

‘Seven days you shall eat unleavened bread, but on the first day you shall remove leaven from your houses; for whoever eats anything leavened from the first day until the seventh day, that person shall be cut off from Israel.

And Moses said to the people, “Remember this day in which you went out from Egypt, from the house of slavery; for by a strong hand Yahweh brought you out from this place. And nothing leavened shall be eaten.

“For seven days you shall eat unleavened bread, and on the seventh day there shall be a feast to Yahweh.

“Unleavened bread shall be eaten throughout the seven days; and nothing leavened shall be seen among you, nor shall any leaven be seen among you in all your borders.

“You shall keep the Feast of Unleavened Bread; for seven days you are to eat unleavened bread, as I commanded you, at the appointed time in the month Abib, for in it you came out of Egypt. And none shall appear before Me empty-handed.

‘In the first month, on the fourteenth day of the month at twilight is the Passover of Yahweh.

‘Then on the fifteenth day of the same month there is the Feast of Unleavened Bread to Yahweh; for seven days you shall eat unleavened bread.

‘Then on the fourteenth day of the first month shall be the Passover of Yahweh.

“You shall not eat leavened bread with it; seven days you shall eat with it unleavened bread, the bread of affliction (for you came out of the land of Egypt in haste), so that you may remember the day when you came out of the land of Egypt all the days of your life.

Thus the sons of Israel who were present celebrated the Passover at that time, and the Feast of Unleavened Bread seven days.

“Then You performed signs and wonders against Pharaoh, Against all his servants and all the people of his land; For You knew that they acted presumptuously toward them, And made a name for Yourself as it is this day.

“In the first month, on the fourteenth day of the month, you shall have the Passover, a feast of seven days; unleavened bread shall be eaten.

Now on the first day of Unleavened Bread the disciples came to Jesus, saying, “Where do You want us to prepare for You to eat the Passover?”

Now the Passover and Unleavened Bread were two days away; and the chief priests and the scribes were seeking how, after seizing Him in secret, they might kill Him;

When he had seized him, he put him in prison, delivering him to four squads of soldiers to guard him, intending after the Passover to bring him out before the people.

Therefore let us celebrate the feast, not with old leaven, nor with the leaven of malice and wickedness, but with the unleavened bread of sincerity and truth.