1 Chronicles 9:27

And they lived around the house of God, because the duty was on them. And they were to open it morning by morning.

1 Samuel 3:15

And Samuel lay until morning, and opened the doors of the house of Jehovah. And Samuel feared to show Eli the vision.

1 Chronicles 23:30-32

and to stand every morning to thank and praise Jehovah, and likewise at evening.

Malachi 1:10

Who is even among you who will shut the doors, and you not kindle fire on My altar in vain! I have no pleasure in you, says Jehovah of Hosts. I will not be pleased with an offering from you.

Romans 12:7

or ministry, in the ministry; or he who teaches, in the 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
and that they should keep the charge of the tabernacle of the congregation, and the charge of the Holy Place, and the charge of their brothers, the sons of Aaron, in the service of the house of Jehovah.
Romans 12:7
or ministry, in the ministry; or he who teaches, in the teaching;

The opening

1 Samuel 3:15
And Samuel lay until morning, and opened the doors of the house of Jehovah. And Samuel feared to show Eli the vision.
Malachi 1:10
Who is even among you who will shut the doors, and you not kindle fire on My altar in vain! I have no pleasure in you, says Jehovah of Hosts. I will not be pleased with an offering from you.