Exodus 12:13

10 And ye shall let nothing of it remain till the morning: and that which remaineth of it till 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] the LORD'S passover.

12 For I will pass through the land of Egypt this 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 judgment: I [am] the LORD.

13 And the blood shall be to you for a token upon the houses where ye [are]: and when I see the blood, I will pass over you, and the plague shall not be upon you to destroy [you], when I smite the land of Egypt.

14 And this day shall be to you for a memorial; and ye shall keep it a feast to the LORD throughout your generations: ye shall keep it a feast by an ordinance for ever.

15 Seven days shall ye eat unleavened bread; even the first day ye shall put away leaven out of your houses: for whoever eateth leavened bread, from the first day till the seventh day, that soul shall be cut off from Israel.

16 And in the first day [there shall be] a holy convocation, and in the seventh day there shall be a holy convocation to you: no manner of work shall be done in them, save [that] which every man must eat, that only may be done by you.