TSK · Exodus 13:2

That thou shalt set apart unto the LORD all that openeth the matrix, and every firstling that cometh of a beast which thou hast; the males [shall be] the LORD'S.

Thou shalt not delay [to offer] the first of thy ripe fruits, and of thy liquors: the firstborn of thy sons shalt thou give unto me.

All that openeth the matrix [is] mine; and every firstling among thy cattle, [whether] ox or sheep, [that is male].

Because all the firstborn [are] mine; [for] on the day that I smote all the firstborn in the land of Egypt I hallowed unto me all the firstborn in Israel, both man and beast: mine shall they be: I [am] the LORD.

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.

Also the firstborn of our sons, and of our cattle, as [it is] written in the law, and the firstlings of our herds and of our flocks, to bring to the house of our God, unto the priests that minister in the house of our God:

(As it is written in the law of the Lord, Every male that openeth the womb shall be called holy to the Lord;)