Leviticus 27:26
Only the firstling among beasts, which is made a firstling to LORD, no man shall sanctify it, whether it be ox or sheep, it is LORD's.
Exodus 13:2
Sanctify to me all the first-born, whatever opens the womb among the sons of Israel. Both of man and of beast, it is mine.
Exodus 13:12-13
that thou shall set apart to LORD all that opens the womb. And every firstling which thou have that comes of a beast, the males shall be LORD's.
Exodus 22:30
Likewise thou shall do with thine oxen, [and] with thy sheep. Seven days it shall be with its dam. On the eighth day thou shall give it me.
Numbers 18:17
But the firstling of a cow, or the firstling of a sheep, or the firstling of a goat, thou shall not redeem. They are holy. Thou shall sprinkle their blood upon the altar, and shall burn their fat for an offering made by fire, for a
Deuteronomy 15:19
All the firstling males that are born of thy herd and of thy flock thou shall sanctify to LORD thy God. Thou shall do no work with the firstling of thy herd, nor shear the firstling of thy flock.