the charge

1 Chronicles 23:32
So the Levites were to carry out the responsibilities for the Tent of Meeting and the Holy Place, and, under their brothers the descendants of Aaron, the service of the house of the LORD.

Romans 12:7
if it is serving, let him serve; if it is teaching, let him teach;

the opening

1 Samuel 3:15
Samuel lay down until the morning; then he opened the doors of the LORD's house. He was afraid to tell Eli the vision,

Malachi 1:10
"Oh, that one of you would shut the temple doors, so that you would no longer kindle useless fires on My altar! I take no pleasure in you, " says the LORD of Hosts, "and I will accept no offering from your hands."