Cross reference
Leviticus 27:26
26 `Only, a firstling which is Jehovah's firstling among beasts -- no man doth sanctify it, whether ox or sheep; it `is' Jehovah's.
Exodus 13:2
2 `Sanctify to Me every first-born, opening any womb among the sons of Israel, among man and among beast; it `is' Mine.'
Exodus 13:12-13
12 that thou hast caused every one opening a womb to pass over to Jehovah, and every firstling -- the increase of beasts which thou hast: the males `are' Jehovah's.
13 `And every firstling of an ass thou dost ransom with a lamb, and if thou dost not ransom `it', then thou hast beheaded it: and every first-born of man among thy sons thou dost ransom.
Exodus 22:30
30 so thou dost to thine ox, to thy sheep; seven days it is with its dam, on the eighth day thou dost give it to Me.
Numbers 18:17
17 `Only, the firstling of a cow, or the firstling of a sheep, or the firstling of a goat, thou dost not ransom, holy they `are': their blood thou dost sprinkle on the altar, and of their fat thou makest perfume, a fire-offering of sweet fragrance to Jehovah,
Deuteronomy 15:19
19 `Every firstling that is born in thy herd and in thy flock -- the male thou dost sanctify to Jehovah thy God; thou dost not work with the firstling of thine ox, nor shear the firstling of thy flock;