“Set apart for me the first boy born in every family. The oldest son of every Israelite mother belongs to me. Every male animal born first to its mother also belongs to me.”
Offer to me every male born first to its mother. It belongs to you. That includes humans and animals alike. But you must buy back every oldest son. Suppose certain animals are ‘unclean.’ Then you must buy back every male born first to its mother.
That’s because every male born first to a mother is mine. In Egypt I struck down all the males born first. I did it when I set apart for myself every male born first to a mother in Israel. That is true for men and animals alike. They belong to me. I am the Lord.”