Numbers 3:9

And thou shalt give the Levites unto Aaron and to his sons: they are wholly given unto him on the behalf of the children of Israel.

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 tent of meeting, and to make 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.

Numbers 18:6-7

And I, behold, I have taken your brethren the Levites from among the children of Israel: to you they are a gift, given unto Jehovah, to do the service of the tent of meeting.

Ephesians 4:8

Wherefore he saith, When he ascended on high, he led captivity captive, And gave gifts unto men.

Ephesians 4:11

And he gave some to be apostles; and some, prophets; and some, evangelists; and some, pastors and teachers;

Treasury of Scripture Knowledge

Summary

And thou shalt give the Levites unto Aaron and to his sons: they are wholly given unto him out of the children of Israel.

Bible References

General references

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 tent of meeting, and to make 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.
Numbers 18:6
And I, behold, I have taken your brethren the Levites from among the children of Israel: to you they are a gift, given unto Jehovah, to do the service of the tent of meeting.
Ephesians 4:8
Wherefore he saith, When he ascended on high, he led captivity captive, And gave gifts unto men.

American Standard Version Public Domain