Numbers 3:46

Conservative English Version

But since there are more first-born sons than Levites, the extra two hundred seventy-three men and boys must be bought back from me.

Cross References

Exodus 13:13

You can save the life of a first-born donkey by sacrificing a lamb; if you don't, you must break the donkey's neck. You must save every first-born son.

Exodus 13:15

The king stubbornly refused to set us free, so the LORD killed the first-born male of every animal and the first-born son of every Egyptian family. This is why we sacrifice to the LORD every first-born male of every animal and save every first-born son."