“A firstborn animal already belongs to the Lord because it was born first. Therefore, it cannot be set apart as holy. Whether it is a bull or a sheep, it belongs to the Lord.
Following the directions in the Teachings, we have drawn lots to decide who should bring the firstborn of our sons, our cattle, and our flocks to the priests serving in our God’s temple.
But if it is an unclean animal, it must be bought back. The payment will be its full value plus one-fifth more. If it is not bought back, it must be sold at the value given it.
“But you must never buy back a firstborn ox, sheep, or goat. They are holy. Throw the blood from these animals against the altar, and burn the fat as an offering by fire, a soothing aroma to the Lord.
because every firstborn is mine. The day I killed every firstborn male in Egypt, I set apart as holy every firstborn in Israel, whether human or animal. They will be mine. I am the Lord.”
You must dedicate every firstborn male from your herds and flocks to the Lord your God. Never use a firstborn ox for work, and never shear a firstborn sheep.