25 And when you have entered into the land that the Lord will give to you, just as he has promised, you shall observe these ceremonies.
26 And when your sons will say to you, 'What is the meaning of this religious observance?'
27 You shall say to them: 'It is the victim of the crossing of the Lord, when he passed over the houses of the sons of Israel in Egypt, striking the Egyptians, and freeing our houses.' " And the people, bowing down, worshipped.
28 And the sons of Israel, departing, did just as the Lord had instructed Moses and Aaron.
29 Then it happened, in the middle of the night: the Lord struck down every firstborn in the land of Egypt, from the firstborn of Pharaoh, who sits on his throne, even to the firstborn of the captive woman who was in prison, and all the firstborn of the cattle.
30 And Pharaoh rose up in the night, and all his servants, and all of Egypt. And there arose a great outcry in Egypt. For there was not a house in which no one lay dead.
31 And Pharaoh, calling Moses and Aaron in the night, said: "Rise up and go forth from among my people, you and the sons of Israel. Go, sacrifice to the Lord, just as you say.