2 Chronicles / Question
As the singers and trumpeters praised the LORD “as one,” a cloud filled the house of the LORD. Because of the cloud, the priests could not stand to minister, and the passage says the glory of the LORD filled the house (2 Chronicles 5:13-14).
As the musicians and singers join into a single, unified sound, their public praise and thanks to Yahweh rises with trumpets, cymbals, and other instruments (2 Chronicles 5:13). At that moment the temple building is filled with a cloud. These verses conclude the scene of bringing the ark into Solomon’s newly completed temple and arranging the priestly and musical service (2 Chronicles 5).
These verses present a climax in the temple dedication scene: many musicians and singers act “as one” so that their praise is heard as a single sound (explicit textual claim). The content of the praise is short and corporate—Yahweh is good and his steadfast love endures forever (explicit textual claim).
A careful answer keeps the immediate passage, the book's argument, and the whole-Bible storyline together, so the question is answered in context instead of as a detached idea.
Start with 2 Chronicles 5:13-14, then read the surrounding section so the answer stays connected to the passage's flow.
13it happened, when the trumpeters and singers were as one, to make one sound to be heard in praising and thanking Yahweh; and when they lifted up their voice with the trumpets and cymbals and instruments of music, and praised Yahweh, [saying], For he is good; for his lovingkindness endures forever; that then the house was filled with a cloud, even the house of Yahweh,
14so that the priests could not stand to minister by reason of the cloud: for the glory of Yahweh filled the house of God.