Exodus 12:13-28 And the blood shall be for you as a sign on the houses in which ye are; and when I see the blood, I will pass over you; and the plague shall not be among you for destruction, when I smite the land of Egypt.

Darby⁽ⁱ⁾ ¹³ And the blood shall be for you as a sign on the houses in which ye are; and when I see the blood, I will pass over you; and the plague shall not be among you for destruction, when I smite the land of Egypt. ¹⁴ And this day shall be unto you for a memorial; and ye shall celebrate it [as] a feast to Jehovah; throughout your generations [as] an ordinance for ever shall ye celebrate it. ¹⁵ Seven days shall ye eat unleavened bread: on the very first day ye shall put away leaven out of your houses; for whoever eateth leavened bread from the first day until the seventh day -- that soul shall be cut off from Israel. ¹⁶ And on the first day ye shall have a holy convocation, and on the seventh day a holy convocation: no manner of work shall be done on them, save what is eaten by every person -- that only shall be done by you. ¹⁷ And ye shall keep the [feast of] unleavened [bread]; for in this same day have I brought your hosts out of the land of Egypt; and ye shall keep this day in your generations [as] an ordinance for ever. ¹⁸ In the first [month], on the fourteenth day of the month, in the evening, ye shall eat unleavened bread until the one and twentieth day of the month in the evening. ¹⁹ Seven days shall there be no leaven found in your houses; for whoever eateth what is leavened -- that soul shall be cut off from the assembly of Israel, whether he be a sojourner, or born in the land. ²⁰ Ye shall eat nothing leavened: in all your dwellings shall ye eat unleavened bread. ²¹ And Moses called all the elders of Israel, and said to them, Seize and take yourselves lambs for your families, and kill the passover. ²² And take a bunch of hyssop, and dip [it] in the blood that is in the bason, and smear the lintel and the two door-posts with the blood that is in the bason; and none of you shall go out of the door of his house until the morning. ²³ And Jehovah will pass through to smite the Egyptians; and when he sees the blood on the lintel, and on the two door-posts, Jehovah will pass over the door, and will not suffer the destroyer to come into your houses to smite [you]. ²⁴ And ye shall observe this as an ordinance for thee and for thy sons for ever. ²⁵ And it shall come to pass, when ye are come into the land that Jehovah will give you, as he has promised, that ye shall keep this service. ²⁶ And it shall come to pass, when your children shall say to you, What mean ye by this service? ²⁷ that ye shall say, It is a sacrifice of passover to Jehovah, who passed over the houses of the children of Israel in Egypt when he smote the Egyptians and delivered our houses. And the people bowed their heads and worshipped. ²⁸ And the children of Israel went away, and did as Jehovah had commanded Moses and Aaron; so did they.