Exodus 12:24-27

ISV(i) 24 You are to observe this event as a perpetual ordinance for you and your children forever. 25 When you enter the land that the LORD will give you, just as he promised, you are to observe this ritual. 26 And when your children say to you, ‘What does this ritual mean?’ 27 you are to say, ‘It is the Passover sacrifice to the LORD, who passed over the houses of the Israelis in Egypt when he struck down the Egyptians but spared our houses.’” Then the people bowed down and worshipped.