Exodus 12:10-12 World English Bible (WEB)
10 You shall let nothing of it remain until the morning; but that which remains of it until the morning you shall burn with fire. 11 This is how you shall eat it: with your belt on your waist, your shoes on your feet, and your staff in your hand; and you shall eat it in haste: it is Yahweh’s Passover. 12 For I will go through the land of Egypt in that night, and will strike all the firstborn in the land of Egypt, both man and animal. Against all the gods of Egypt I will execute judgments: I am Yahweh.