Exodus 12:39

Then Yahweh said to Moses, “Now you shall see what I will do to Pharaoh; for by a strong hand he will let them go, and by a strong hand he will drive them out of his land.”

Then Yahweh said to Moses, “One more plague I will bring on Pharaoh and on Egypt; after that he will let you go from here. When he lets you go, he will surely drive you out from here completely.

And the Egyptians strongly pressed the people to send them out of the land in haste, for they said, “We will all be dead.”

So the people took up their dough before it was leavened, with their kneading bowls bound up in the clothes on their shoulders.

“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.

By faith he kept the Passover and the sprinkling of the blood, so that he who destroyed the firstborn would not touch them.