1 Chronicles 23:28

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

Nehemiah 13:9

Then I commanded, and they cleansed the chambers: and thither brought I again the vessels of the house of God, with the meal-offerings and the frankincense.

Numbers 3:6-9

Bring the tribe of Levi near, and set them before Aaron the priest, that they may minister unto him.

1 Kings 6:5

And against the wall of the house he built stories round about, against the walls of the house round about, both of the temple and of the oracle; and he made side-chambers round about.

1 Chronicles 9:28-29

And certain of them had charge of the vessels of service; for by count were these brought in and by count were these taken out.

1 Chronicles 18:17

and Benaiah the son of Jehoiada was over the Cherethites and the Pelethites; and the sons of David were chief about the king.

1 Chronicles 23:4

Of these, twenty and four thousand were to oversee the work of the house of Jehovah; and six thousand were officers and judges;

1 Chronicles 28:13

also for the courses of the priests and the Levites, and for all the work of the service of the house of Jehovah, and for all the vessels of service in the house of Jehovah;

2 Chronicles 29:5

and said unto them, Hear me, ye Levites; now sanctify yourselves, and sanctify the house of Jehovah, the God of your fathers, and carry forth the filthiness out of the holy place.

2 Chronicles 29:18-19

Then they went in to Hezekiah the king within the palace , and said, We have cleansed all the house of Jehovah, and the altar of burnt-offering, with all the vessels thereof, and the table of showbread, with all the vessels thereof.

2 Chronicles 31:11

Then Hezekiah commanded to prepare chambers in the house of Jehovah; and they prepared them.

2 Chronicles 35:3-6

And he said unto the Levites that taught all Israel, that were holy unto Jehovah, Put the holy ark in the house which Solomon the son of David king of Israel did build; there shall no more be a burden upon your shoulders: now serve Jehovah your God, and his people Israel.

2 Chronicles 35:11-14

And they killed the passover, and the priests sprinkled the blood which they received of their hand, and the Levites flayed them.

Ezra 8:29

Watch ye, and keep them, until ye weigh them before the chiefs of the priests and the Levites, and the princes of the fathers houses of Israel, at Jerusalem, in the chambers of the house of Jehovah.

Nehemiah 11:24

And Pethahiah the son of Meshezabel, of the children of Zerah the son of Judah, was at the king's hand in all matters concerning the people.

Nehemiah 13:4-5

Now before this, Eliashib the priest, who was appointed over the chambers of the house of our God, being allied unto Tobiah,

Jeremiah 35:4

and I brought them into the house of Jehovah, into the chamber of the sons of Hanan the son of Igdaliah, the man of God, which was by the chamber of the princes, which was above the chamber of Maaseiah the son of Shallum, the keeper of the threshold.

Ezekiel 41:6-11

And the side-chambers were in three stories, one over another, and thirty in order; and they entered into the wall which belonged to the house for the side-chambers round about, that they might have hold therein , and not have hold in the wall of the house.

Ezekiel 41:26

And there were closed windows and palm-trees on the one side and on the other side, on the sides of the porch: thus were the side-chambers of the house, and the thresholds.

Ezekiel 42:3

Over against the twenty cubits which belonged to the inner court, and over against the pavement which belonged to the outer court, was gallery against gallery in the third story.

Ezekiel 42:13

Then said he unto me, The north chambers and the south chambers, which are before the separate place, they are the holy chambers, where the priests that are near unto Jehovah shall eat the most holy things: there shall they lay the most holy things, and the meal-offering, and the sin-offering, and the trespass-offering; for the place is holy.

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 sons of David were chief about the king.

For the service

1 Chronicles 23:4
Of these, twenty and four thousand were to oversee the work of the house of Jehovah; and six thousand were officers and judges;
1 Chronicles 28:13
also for the courses of the priests and the Levites, and for all the work of the service of the house of Jehovah, and for all the vessels of service in the house of Jehovah;
Numbers 3:6
Bring the tribe of Levi near, and set them before Aaron the priest, that they may minister unto him.
1 Kings 6:5
And against the wall of the house he built stories round about, against the walls of the house round about, both of the temple and of the oracle; and he made side-chambers round about.
2 Chronicles 31:11
Then Hezekiah commanded to prepare chambers in the house of Jehovah; and they prepared them.
Ezra 8:29
Watch ye, and keep them, until ye weigh them before the chiefs of the priests and the Levites, and the princes of the fathers houses of Israel, at Jerusalem, in the chambers of the house of Jehovah.
Nehemiah 13:4
Now before this, Eliashib the priest, who was appointed over the chambers of the house of our God, being allied unto Tobiah,
Jeremiah 35:4
and I brought them into the house of Jehovah, into the chamber of the sons of Hanan the son of Igdaliah, the man of God, which was by the chamber of the princes, which was above the chamber of Maaseiah the son of Shallum, the keeper of the threshold.
Ezekiel 41:6
And the side-chambers were in three stories, one over another, and thirty in order; and they entered into the wall which belonged to the house for the side-chambers round about, that they might have hold therein , and not have hold in the wall of the house.
Ezekiel 42:3
Over against the twenty cubits which belonged to the inner court, and over against the pavement which belonged to the outer court, was gallery against gallery in the third story.

Purifying

1 Chronicles 9:28
And certain of them had charge of the vessels of service; for by count were these brought in and by count were these taken out.
2 Chronicles 29:5
and said unto them, Hear me, ye Levites; now sanctify yourselves, and sanctify the house of Jehovah, the God of your fathers, and carry forth the filthiness out of the holy place.
2 Chronicles 35:3
And he said unto the Levites that taught all Israel, that were holy unto Jehovah, Put the holy ark in the house which Solomon the son of David king of Israel did build; there shall no more be a burden upon your shoulders: now serve Jehovah your God, and his people Israel.

General references

Ezekiel 40:7
And every lodge was one reed long, and one reed broad; and the space between the lodges was five cubits; and the threshold of the gate by the porch of the gate toward the house was one reed.
Ezekiel 44:14
Yet will I make them keepers of the charge of the house, for all the service thereof, and for all that shall be done therein.

American Standard Version Public Domain