Deuteronomy 16:1-3

Living Bible

16 “Always remember to celebrate the Passover during the month of April,^[a] for that was when Jehovah your God brought you out of Egypt by night. ² Your Passover sacrifice shall be either a lamb or an ox, sacrificed to the Lord your God at his sanctuary. ³ Eat the sacrifice with unleavened bread. Eat unleavened bread for seven days as a reminder of the bread you ate as you escaped from Egypt. This is to remind you that you left Egypt in such a hurry that there was no time for the bread to rise.^[b] Remember that day all the rest of your lives!