Leviticus 23:4-8 - The Passover
4 "'These are the feasts of the LORD which ye shall proclaim holy in their seasons: 5 The fourteenth day of the first month at evening is the LORD's Passover. 6 And the fifteenth day of the same month is the feast of sweet bread unto the LORD; seven days ye must eat unleavened bread. 7 The first day shall be a holy feast unto you, so that ye may do no laborious work therein. 8 But ye shall offer sacrifices unto the LORD seven days, and the seventh day also shall be a holy feast, so that ye may do no laborious work therein.'"
1 And the LORD spake unto Moses in the wilderness of Sinai, in the first month of the second year, after they were come out of the land of Egypt, saying, 2 "Let the children of Israel offer Passover in his season: 3 even the fourteenth day of this month at even they shall keep it in his season, according to all the ordinances and manners thereof." 4 And Moses bade the children of Israel that they should offer Passover, 5 and they offered Passover the fourteenth day of the first month at even in the wilderness of Sinai: and did according to all that the LORD commanded Moses.
6 And it chanced that certain men which were defiled with a dead corpse, that they might not offer Passover the same day, came before Moses and Aaron the same day, 7 and said, "We are defiled upon a dead corpse, wherefore are we kept back that we may not offer an offering unto the LORD in the due season, among the children of Israel?"
8 And Moses said unto them, "Tarry, that I may hear what the LORD will command you."
9 And the LORD spake unto Moses, saying, 10 "Speak unto the children of Israel, and say, 'If any man among you or your children after you be unclean by the reason of a corpse or is in the way far off, then let him offer Passover unto the LORD: 11 the fourteenth day of the second month at even, and eat it with sweet bread and sour herbs, 12 and let them leave none of it unto the morning nor break any bone of it. And according to all the ordinance of the Passover let them offer it.
13 But if a man be clean and not let in a journey, and yet was negligent to offer Passover, the same soul shall perish from his people, because he brought not an offering unto the LORD in his due season: and he shall bear his sin.
14 And when a stranger dwelleth among you and will offer Passover unto the LORD, according to the ordinance of Passover and manner thereof shall he offer it. And ye shall have one law both for the stranger and for him that was born at home in the land.'"