Exodus 12:10-14

10You must eat all the meat before morning arrives. If some of it still remains in the morning, then you must burn it.

11This is how you must eat the lamb: Dress yourselves so that you are ready to travel. Put your shoes on your feet. Take your stick in your hand. Then eat the food quickly. This is the Passover meal which shows that you obey me, the Lord.

12On the night that you eat the Passover meal, I will travel through the country of Egypt. I will kill every firstborn son and every firstborn male animal. I will punish all the gods of Egypt. I am the Lord.

13When you put the blood round the doors of your houses, that will be a sign to show that you live there. When I see the blood on your house, I will pass over you. No trouble will hurt you, when I attack the people of Egypt.

14In future years, you must remember this day as a special day every year. It will be a festival when you worship me, the Lord. You and your descendants must do this every year, for all time.