3:9 And thou shalt give the Levites unto Aaron and to his {f} sons: they [are] wholly given unto him out of the children of Israel.
(f) Aaron's sons the priests served in the sanctuary in praying for the people and offering sacrifice: the Levites served for the inferior uses of the same.
3:9 Given to him - To attend upon him and observe his orders, and ease him of his burden.
3:1-13 There was much work belonging to the priests' office, and there were now only Aaron and his two sons to do it; God appoints the Levites to attend them. Those whom God finds work for, he will find help for. The Levites were taken instead of the first-born. When He that made us, saves us, as the first-born of Israel were saved, we are laid under further obligations to serve him faithfully. God's right to us by redemption, confirms the right he has to us by creation.
