2 Chronicles 13:10

And we, Jehovah is our God, and we forsook him not; and the priests serving to Jehovah, the sons of Aaron, and the Levites in the work:

Exodus 19:5-6

And now if hearing, ye shall hear to my voice, and watch my covenant, and ye were to me wealth above all peoples, for to me is all the earth.

Exodus 29:1-37

And this the word thou shall do to them to consecrate them, to be priests to me: Take one bullock, the son of a cow, two complete rams,

Numbers 16:40

A remembrance to the sons of Israel, so that a man, a stranger, shall not come near, he who is not from the seed of Aaron, to burn incense before Jehovah; and he shall not be as Korah and as his assembly: as Jehovah spake to him by the hand of Moses.

Numbers 18:1-7

And Jehovah will say to Aaron, Thou, and thy sons, and thy father's house with thee, shall bear the iniquity of the holy place: and thou and thy sons with thee, shall bear the iniquity of your priesthood.

2 Chronicles 11:16-17

And after them from all the tribes of Israel those giving their heart to seek Jehovah God of Israel came to Jerusalem to sacrifice to Jehovah the God of their fathers.

Zechariah 13:9

And I brought the third through fire, and I purified them as purifying silver, and I tried them as trying gold: he shall call on my name and I will answer him: I said, He is my people; and he shall say, Jehovah my God.

Treasury of Scripture Knowledge

Summary

But as for us, the LORD is our God, and we have not forsaken him; and the priests, which minister unto the LORD, are the sons of Aaron, and the Levites wait upon their business:

Bible References

The lord

2 Chronicles 11:16
And after them from all the tribes of Israel those giving their heart to seek Jehovah God of Israel came to Jerusalem to sacrifice to Jehovah the God of their fathers.
Exodus 19:5
And now if hearing, ye shall hear to my voice, and watch my covenant, and ye were to me wealth above all peoples, for to me is all the earth.
Zechariah 13:9
And I brought the third through fire, and I purified them as purifying silver, and I tried them as trying gold: he shall call on my name and I will answer him: I said, He is my people; and he shall say, Jehovah my God.

The priests

Exodus 29:1
And this the word thou shall do to them to consecrate them, to be priests to me: Take one bullock, the son of a cow, two complete rams,
Numbers 16:40
A remembrance to the sons of Israel, so that a man, a stranger, shall not come near, he who is not from the seed of Aaron, to burn incense before Jehovah; and he shall not be as Korah and as his assembly: as Jehovah spake to him by the hand of Moses.
Numbers 18:1
And Jehovah will say to Aaron, Thou, and thy sons, and thy father's house with thee, shall bear the iniquity of the holy place: and thou and thy sons with thee, shall bear the iniquity of your priesthood.