2 The priests could not enter the temple of the LORD because the glory of the LORD filled it.

Read 2 Chronicles 7:2 Using Other Translations

And the priests could not enter into the house of the LORD, because the glory of the LORD had filled the LORD'S house.
And the priests could not enter the house of the LORD, because the glory of the LORD filled the LORD's house.
The priests could not enter the Temple of the LORD because the glorious presence of the LORD filled it.