Exodus 12:10-12

American Standard Version

¹⁰ And ye shall let nothing of it remain until the morning; but that which remaineth of it until the morning ye shall burn with fire. ¹¹ And thus shall ye eat it: with your loins girded, your shoes on your feet, and your staff in your hand; and ye shall eat it in haste: it is Jehovah’s passover. ¹² For I will go through the land of Egypt in that night, and will smite all the first-born in the land of Egypt, both man and beast; and against all the gods of Egypt I will execute judgments: I am Jehovah.