Exodus 34:19 All that openeth the matrix is mine; and every firstling among thy cattle, whether ox or sheep, that is male. 10 I MC VC

Numbers 3:12 And I, behold, I have taken the Levites from among the children of Israel instead of all the firstborn that openeth the matrix among the children of Israel: therefore the Levites shall be mine; 12 I MC VC

Numbers 18:15 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. 10 I MC VC