1 Chronicles 9:27

They spent the night around the house of God, because the watch was committed to them; and they were in charge of opening it morning by morning.

1 Samuel 3:15

So Samuel lay down until morning. Then he opened the doors of the house of the Lord. But Samuel was afraid to tell the vision to Eli.

1 Chronicles 23:30-32

They are to stand every morning to thank and to praise the Lord, and likewise at evening,

Malachi 1:10

“Oh that there were one among you who would shut the gates, that you might not uselessly kindle fire on My altar! I am not pleased with you,” says the Lord of hosts, “nor will I accept an offering from you.

Romans 12:7

if service, in his serving; or he who teaches, in his teaching;

Treasury of Scripture Knowledge

Summary

And they lodged round about the house of God, because the charge was upon them, and the opening thereof every morning pertained to them.

Bible References

The charge

1 Chronicles 23:32
Thus they are to keep charge of the tent of meeting, and charge of the holy place, and charge of the sons of Aaron their relatives, for the service of the house of the Lord.
Romans 12:7
if service, in his serving; or he who teaches, in his teaching;

The opening

1 Samuel 3:15
So Samuel lay down until morning. Then he opened the doors of the house of the Lord. But Samuel was afraid to tell the vision to Eli.
Malachi 1:10
“Oh that there were one among you who would shut the gates, that you might not uselessly kindle fire on My altar! I am not pleased with you,” says the Lord of hosts, “nor will I accept an offering from you.