Exodus 12
11 Ref And take your meal dressed as if for a journey, with your shoes on your feet and your sticks in your hands: take it quickly: it is the Lord's Passover.
12 Ref For on that night I will go through the land of Egypt, sending death on every first male child, of man and of beast, and judging all the gods of Egypt: I am the Lord.
13 Ref And the blood will be a sign on the houses where you are: when I see the blood I will go over you, and no evil will come on you for your destruction, when my hand is on the land of Egypt.
14 Ref And this day is to be kept in your memories: you are to keep it as a feast to the Lord through all your generations, as an order for ever.