Exodus 12:13-15

21st Century King James Version

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 unto 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 whosoever eateth leavened bread from the first day until the seventh day, that soul shall be cut off from Israel.