1 Chronicles 6:48

And their brothers, the Levites, were appointed for all kinds of service of the tabernacle of the house of God.

Numbers 3:1-4

These also are the generations of Aaron and Moses in the day Jehovah spoke with Moses in Mount Sinai.

Numbers 8:5-26

And Jehovah spoke to Moses saying,

Numbers 16:9-10

is it only a small thing to you that the God of Israel has separated you from the congregation of Israel, to bring you near Himself to do the service of the tabernacle of Jehovah and to stand before the congregation to minister to them?

Numbers 18:1-32

And Jehovah said to Aaron, You and your sons, and your father's house with you shall bear the iniquity of the sanctuary. And you and your sons with you shall bear the iniquity of your priesthood.

1 Chronicles 23:2

And he gathered all the rulers of Israel, with the priests and the Levites.

1 Chronicles 25:1-26

And David and the army commanders separated to the service those of the sons of Asaph, and of Heman, and of Jeduthun, who were prophets with lyres and with cymbals. And the number of the workmen according to their service was:

Treasury of Scripture Knowledge

Summary

Their brethren also the Levites were appointed unto all manner of service of the tabernacle of the house of God.

Bible References

Brethren

1 Chronicles 23:2
And he gathered all the rulers of Israel, with the priests and the Levites.
Numbers 8:5
And Jehovah spoke to Moses saying,
Numbers 16:9
is it only a small thing to you that the God of Israel has separated you from the congregation of Israel, to bring you near Himself to do the service of the tabernacle of Jehovah and to stand before the congregation to minister to them?