10 Obey this law at the appointed time year after year.
11 "The Lord will bring you into the land of Canaan. He will give it to you, just as he promised he would. He even took an oath when he made the promise to you and your people of long ago.
12 "After you arrive there, give to the Lord the oldest son of every mother. Every male animal that is born first to its mother among your livestock belongs to the Lord.
13 By sacrificing a lamb, buy back every male donkey that is born first to its mother. But if you don't buy the donkey back, break its neck. Buy back every oldest son.
14 "In days to come, your son will ask you, 'What does this mean?' "When he does, say to him, 'The Lord used his mighty hand to bring us out of Egypt. That's the land where we were slaves.
15 Pharaoh was stubborn. He refused to let us go. So the Lord killed every oldest son in Egypt. He also killed every male animal that was born first to its mother. That's why I sacrifice to the Lord every male animal that was born first. And that's why I buy back each oldest son for him.'
16 "This day will be like a mark on your hand. It will be like a sign on your forehead. It will remind you that the Lord used his mighty hand to bring us out of Egypt."