Numbers 3:46

Good News Translation

Since the first-born Israelite sons outnumber the Levites by 273, you must buy back the extra sons.

Cross References

Exodus 13:13

but you must buy back from him every first-born male donkey by offering a lamb in its place. If you do not want to buy back the donkey, break its neck. You must buy back every first-born male child of yours.

Exodus 13:15

When the king of Egypt was stubborn and refused to let us go, the Lord killed every first-born male in the land of Egypt, both human and animal. That is why we sacrifice every first-born male animal to the Lord, but buy back our first-born sons.