Exodus 13:2

CLV⁽ⁱ⁾ ² Hallow to Me every firstborn male, opening up every womb, among the sons of Israel, among human and among beast. It is Mine.

Online Parallel Study Bible

Sanctify.The word {kadash} is to consecrate, separate, and set apart a person or thing from all common or secular purposes to some religious use; and exactly answers to the Greek [hagiazo,] from [a,] privative, and [g\u65533,] the earth; because everything offered or consecrated to God was separated from all earthly uses.
Exodus 13:12-15; Exodus 4:22; Exodus 22:29; Exodus 22:30; Exodus 23:19; Exodus 34:19; Exodus 34:20; Leviticus 27:26; Numbers 3:13; Numbers 8:16; Numbers 8:17
Numbers 18:15; Deuteronomy 15:19; Luke 2:23; Hebrews 12:23