Exodus 34:19
All that opens the womb is mine; and every firstborn among thy livestock, whether of cow or of sheep, that is male.
Exodus 13:2
Sanctify unto me all the firstborn, whatever opens the womb among the sons of Israel, both of man and of beast; for it is mine.
Exodus 22:29
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.
Exodus 13:12
that thou shalt set apart unto the LORD all that opens the womb and in the same manner every firstborn that opens the wombs of thy animals; the males shall be the LORD's.
Numbers 18:15-17
Every thing that opens the womb in all flesh, which they shall offer unto the LORD, whether it is of men or animals, shall be thine; nevertheless the firstborn of man shalt thou surely ransom, and the firstborn of unclean animals shalt thou ransom.
Ezekiel 44:30
And the first of all the firstfruits of all things, and every offering of all, of every sort of your offerings, shall be the priest's; ye shall also give unto the priest the first of your dough, that he may cause the blessing to rest in thine house.
Luke 2:23
(as it is written in the law of the Lord, Every male that opens the womb shall be called holy to the Lord)