For all the firstborn of the children of Israel are mine, both man and beast: on the day that I smote every firstborn in the land of Egypt I sanctified them for myself. For all the first-born - are mine - See the manner of redeeming the first-born, Numbers 18:6.
Related Commentaries of Numbers 8:17
Numbers 8:17
17 For all the firstborn of the children of Israel are mine, both man and beast: on the day that I smote every firstborn in the land of Egypt I sanctified them for myself.