Exodus 28:1
And take you to you Aaron your brother, and his sons with him, from among the children of Israel, that he may minister to me in the priest's office, even Aaron, Nadab and Abihu, Eleazar and Ithamar, Aaron's sons.
Torrey's Topical Textbook—AKJV

Numbers 18:6
And I, behold, I have taken your brothers the Levites from among the children of Israel: to you they are given as a gift for the LORD, to do the service of the tabernacle of the congregation.
Torrey's Topical Textbook—AKJV

Malachi 2:4-7
And you shall know that I have sent this commandment to you, that my covenant might be with Levi, said the LORD of hosts.
Torrey's Topical Textbook—AKJV