Numbers 3:9
"And thou shalt give the Levites unto Aaron and to his sons: they are wholly given unto him out of the children of Israel."
Cross References (ranked by relevance)
Numbers 8:19
And I have given the Levites as a gift to Aaron and to his sons from among the children of Israel, to do the service of the children of Israel in the tabernacle of the congregation, and to make an atonement for the children of Israel: that there be no plague among the children of Israel, when the children of Israel come nigh unto the sanctuary.
Ephesians 4:11
And he gave some, apostles; and some, prophets; and some, evangelists; and some, pastors and teachers;
Ephesians 4:8
Wherefore he saith, When he ascended up on high, he led captivity captive, and gave gifts unto men.