On the eve of Israel’s deliverance from bondage in Egypt, the LORD said to Moses and Aaron, “This month shall be the beginning of months for you; it is to be the first month of the year to you.
Speak to all the congregation of Israel, saying, “On the tenth of this month they are each one to take a lamb for themselves, according to their fathers’ households, a lamb for each household...
You shall keep it until the fourteenth day of the same month, then the whole assembly of the congregation of Israel is to kill it at twilight.
Moreover, they shall take some of the blood and put it on the two doorposts and on the lintel of the houses in which they eat it.
They shall eat the flesh that same night, roasted with fire, and they shall eat it with matzah (unleavened bread) and maror (bitter herbs).