1 Chronicles 23:28

"To wait at the hands of the sons of Aaron in the service of the house of the LORD, and to have the oversight of the courts and of the store houses, and of the purifying of all holy things, and of the work of the things that served for the house of God,

Nehemiah 13:9

and commanded them to cleanse the chest. And thither brought I again the vessels of the house of God, the meat offering and the incense.

Numbers 3:6-9

"Bring the tribe of Levi, and set them before Aaron the priest, and let them serve him and wait upon him -

1 Kings 6:5

And under the walls of the house he made galleries round about, both round about the temple and also the quyre. And so made sides round about.

1 Chronicles 9:28-29

And certain of them had the rule of the ministering vessels and brought them in and out by tale.

1 Chronicles 18:17

and Benaiah the son of Jehoiada was over the Cherethites and the Pelethites and the eldest sons of David waited at the king's hand.

1 Chronicles 23:4

Of which twenty four thousand were set to further the work of the house of the LORD. And six thousand were officers and judges.

1 Chronicles 28:13

and of the companies of the priests and Levites that waited by course, and of all workmanship, that should serve for the house of the LORD, and for all vessels that should serve in the house of the LORD.

2 Chronicles 29:5

and said unto them, "Hear me ye Levites: purify yourselves and hallow the house of the LORD God of your fathers, and bring out the filthiness out of the holy place.

2 Chronicles 29:18-19

And then they went into Hezekiah the king and said, "We have cleansed all the house of the LORD, and the altar of burnt offerings with all his vessels, and the shewbread table with all his apparel;

2 Chronicles 31:11

And Hezekiah bade dress up the store houses about the house of the LORD. And so they did,

2 Chronicles 35:3-6

And he said to the Levites that taught throughout all Israel and were sanctified unto the LORD, "Put the holy ark in the house which Solomon the son of David king of Israel did build; ye need not to bear it upon your shoulders. Wherefore now serve the LORD your God and his people Israel.

2 Chronicles 35:11-14

And they slew Passover: and the priests sprinkled the blood, receiving it of the Levites, and the Levites stripped the beasts.

Ezra 8:29

Watch ye therefore and keep it, till ye weigh it down before the chief priests and Levites, and ancient fathers of Israel at Jerusalem in the chests of the house of the LORD."

Nehemiah 11:24

And Pethahiah the son of Meshezabel, of the children of Zerah the son of Judah, next to the king in all matters concerning the people

Nehemiah 13:4-5

And before this had the Priest Eliashib delivered the chest of the house of our God unto his kinsman Tobiah:

Jeremiah 35:4

and brought them to the house of the LORD, into the closet of the children of Hanan the son of Igdaliah the man of God: which was by the closet of the princes, that is above the closet of Maaseiah the son of Shallum, which is the chief of the treasury.

Ezekiel 41:6-11

and one stood hard upon another, whereof there were thirty three. And there stood posts beneath by the walls round about the house, to bear them up: but in the wall of the house they were not fastened.

Ezekiel 41:26

Upon both the sides of the walls of the porch there were made deep windows and date trees, having beams and balks, like as the house had.

Ezekiel 42:3

over against the twenty cubits of the innermore court, and against the paved work that was in the fore court. Beside all these three, there stood pillars, one over against another:

Ezekiel 42:13

Then said he unto me, "The chambers toward the north and the south which stand before the back building: those be holy habitations, wherein the priests that do service before the LORD must eat the most holy offerings. And there must they lay the most holy offerings: meat offerings, sin offerings and the trespass offerings, for it is a holy place.

Treasury of Scripture Knowledge

Summary

Because their office was to wait on the sons of Aaron for the service of the house of the LORD, in the courts, and in the chambers, and in the purifying of all holy things, and the work of the service of the house of God;

Office was to wait, etc

General references

Bible References

Office was to wait, etc

1 Chronicles 18:17
and Benaiah the son of Jehoiada was over the Cherethites and the Pelethites and the eldest sons of David waited at the king's hand.

For the service

1 Chronicles 23:4
Of which twenty four thousand were set to further the work of the house of the LORD. And six thousand were officers and judges.
1 Chronicles 28:13
and of the companies of the priests and Levites that waited by course, and of all workmanship, that should serve for the house of the LORD, and for all vessels that should serve in the house of the LORD.
Numbers 3:6
"Bring the tribe of Levi, and set them before Aaron the priest, and let them serve him and wait upon him -
1 Kings 6:5
And under the walls of the house he made galleries round about, both round about the temple and also the quyre. And so made sides round about.
2 Chronicles 31:11
And Hezekiah bade dress up the store houses about the house of the LORD. And so they did,
Ezra 8:29
Watch ye therefore and keep it, till ye weigh it down before the chief priests and Levites, and ancient fathers of Israel at Jerusalem in the chests of the house of the LORD."
Nehemiah 13:4
And before this had the Priest Eliashib delivered the chest of the house of our God unto his kinsman Tobiah:
Jeremiah 35:4
and brought them to the house of the LORD, into the closet of the children of Hanan the son of Igdaliah the man of God: which was by the closet of the princes, that is above the closet of Maaseiah the son of Shallum, which is the chief of the treasury.
Ezekiel 41:6
and one stood hard upon another, whereof there were thirty three. And there stood posts beneath by the walls round about the house, to bear them up: but in the wall of the house they were not fastened.
Ezekiel 42:3
over against the twenty cubits of the innermore court, and against the paved work that was in the fore court. Beside all these three, there stood pillars, one over against another:

Purifying

1 Chronicles 9:28
And certain of them had the rule of the ministering vessels and brought them in and out by tale.
2 Chronicles 29:5
and said unto them, "Hear me ye Levites: purify yourselves and hallow the house of the LORD God of your fathers, and bring out the filthiness out of the holy place.
2 Chronicles 35:3
And he said to the Levites that taught throughout all Israel and were sanctified unto the LORD, "Put the holy ark in the house which Solomon the son of David king of Israel did build; ye need not to bear it upon your shoulders. Wherefore now serve the LORD your God and his people Israel.

General references

Ezekiel 40:7
between the chambers were five cubits. The post of the door within the porch, was one measuring rod.
Ezekiel 44:14
Should I use them to be porters of the house, and to all the service that is done therein?