Treasury of Scripture Knowledge

Summary

Every thing that openeth the matrix in all flesh, which they bring unto the LORD, whether it be of men or beasts, shall be thine: nevertheless the firstborn of man shalt thou surely redeem, and the firstling of unclean beasts shalt thou redeem.

General references

Bible References

The firstborn

Exodus 13:13
And every firstling of a donkey thou shall redeem with a lamb, and if thou will not redeem it, then thou shall break its neck. And all the first-born of man among thy sons thou shall redeem.
Exodus 34:20
And the firstling of a donkey thou shall redeem with a lamb, and if thou will not redeem it, then thou shall break its neck. All the first-born of thy sons thou shall redeem. And none shall appear before me empty.
Leviticus 27:27
And if it be of an unclean beast, then he shall ransom it according to thine estimation, and shall add to it the fifth part of it, or if it be not redeemed, then it shall be sold according to thy estimation.

General references

Numbers 3:15
Number the sons of Levi by their fathers' houses, by their families. Thou shall number them, every male from a month old and upward.