Exodus 12:26-28

26And when your children ask you, ‘What does this ceremony mean to you?’ 27then tell them, ‘It is the Passover sacrifice to the LORD, who passed over the houses of the Israelites in Egypt and spared our homes when he struck down the Egyptians.’ ” Then the people bowed down and worshiped.

28The Israelites did just what the LORD commanded Moses and Aaron.