Exodus 12:9-11

9Do not eat the meat raw or boiled in water, but roast it over a fire—with the head, legs and internal organs. 10Do not leave any of it till morning; if some is left till morning, you must burn it.

11This is how you are to eat it: with your cloak tucked into your belt, your sandals on your feet and your staff in your hand. Eat it in haste; it is the LORD ’s Passover.