Charles Ellicott Commentary 2 Chronicles 5:13

"it came to pass, when the trumpeters and singers were as one, to make one sound to be heard in praising and thanking Jehovah; and when they lifted up their voice with the trumpets and cymbals and instruments of music, and praised Jehovah, [saying], For he is good; for his lovingkindness [endureth] for ever; that then the house was filled with a cloud, even the house of Jehovah," — 2 Chronicles 5:13 (ASV)

It came even to pass ... thanking the Lord. — And the trumpeters and the minstrels were to sound aloud, as one man, with one sound, in order to praise and thank the Lord. This ends the parenthesis.

Their voice with the trumpets. — Rather, A sound with trumpets, etc.

And praised the Lord, saying, For he is good. — For this common liturgical formula, see 1 Chronicles 16:34; 1 Chronicles 16:41.

That then the house was filled with a cloud, even the house of the Lord. — Omit that (1 Kings 8:10). It should read, Then the cloud filled the house of the Lord.

The Septuagint reads, with the cloud of the glory of the Lord; the Vulgate simply states, so that the house of God was filled with a cloud. (The Syriac and Arabic versions omit 2 Chronicles 5:12–13.)

The unpointed Hebrew text might be rendered the house was filled with the cloud of the house of the Lord; however, the Authorised Version is preferable; the phrase the house of the Lord, being added as a sort of climax.

(Compare to 2 Chronicles 4:21, towards the end.) Thus Reuss states, “Le temple se remplit d’une nuée, le temple de l’ Eternel.” The emphatic word is Jehovah, of whose presence the bright cloud was the constant sign.