1 Chronicles 9:23

So, they and their sons, were over the gates of the house of Yahweh, of the house of the tent, by watches.

1 Chronicles 23:32

and they shall keep the charge of the tent of meeting, and the charge of the holy place, and the charge of the sons of Aaron, their brethren, - in the laborious work of the house of Yahweh.

2 Chronicles 23:19

And he caused gatekeepers to stand, at the gates of the house of Yahweh, - that no one who was unclean should, on any account, enter.

Nehemiah 12:45

So they kept the charge of their God, and the charge of the purification, and so did the singers and the doorkeepers, - according to the commandment of David and of Solomon his son.

Ezekiel 44:10-11

But as for the Levites. Who went far from me, when Israel went astray. Who went astray from me, after their manufactured gods, Therefore shall they bear their iniquity,

Ezekiel 44:14

Yet will I make them keepers of the charge of the house, - As to all the labour thereof, and As to all which shall be done therein.

Treasury of Scripture Knowledge

Summary

So they and their children had the oversight of the gates of the house of the LORD, namely, the house of the tabernacle, by wards.

General references

Bible References

The oversight

1 Chronicles 23:32
and they shall keep the charge of the tent of meeting, and the charge of the holy place, and the charge of the sons of Aaron, their brethren, - in the laborious work of the house of Yahweh.
2 Chronicles 23:19
And he caused gatekeepers to stand, at the gates of the house of Yahweh, - that no one who was unclean should, on any account, enter.
Nehemiah 12:45
So they kept the charge of their God, and the charge of the purification, and so did the singers and the doorkeepers, - according to the commandment of David and of Solomon his son.
Ezekiel 44:10
But as for the Levites. Who went far from me, when Israel went astray. Who went astray from me, after their manufactured gods, Therefore shall they bear their iniquity,

General references

1 Chronicles 15:23
And, Berechiah and Elkanah, were door-keepers to the ark.