Numbers 3:46

Revised Standard Version

And for the redemption of the two hundred and seventy-three of the first-born of the people of Israel, over and above the number of the male Levites,

Cross References

Exodus 13:13

Every firstling of an ass you shall redeem with a lamb, or if you will not redeem it you shall break its neck. Every first-born of man among your sons you shall redeem.

Exodus 13:15

For when Pharaoh stubbornly refused to let us go, the Lord slew all the first-born in the land of Egypt, both the first-born of man and the first-born of cattle. Therefore I sacrifice to the Lord all the males that first open the womb; but all the first-born of my sons I redeem.’