Exodus 12:13-15

Amplified Bible, Classic Edition

¹³ The blood shall be for a token or sign to you upon [the doorposts of] the houses where you are, [that] when I see the blood, I will pass over you, and no plague shall be upon you to destroy you when I smite the land of Egypt.^(A)

¹⁴ And this day shall be to you for a memorial. You shall keep it as a feast to the Lord throughout your generations, keep it as an ordinance forever.

¹⁵ [In celebration of the Passover in future years] seven days shall you eat unleavened bread; even the first day you shall put away leaven [symbolic of corruption] out of your houses; for whoever eats leavened bread from the first day until the seventh day, that person shall be cut off from Israel.