Charles Ellicott Commentary Isaiah 25:5

"As the heat in a dry place wilt thou bring down the noise of strangers; as the heat by the shade of a cloud, the song of the terrible ones shall be brought low." — Isaiah 25:5 (ASV)

You shall bring down the noise of strangers ... —The thought of Isaiah 25:4 is reproduced with a variation of imagery, the scorching “heat” in a “dry” (or parched) “land.” This is deprived of its power to harm by the presence of Jehovah, as the welcome shadow of a cloud hides the sun’s intolerable blaze. (Compare to Isaiah 32:2.) It is noticeable that the Septuagint in both passages gives “Sion” for “dry place” (Hebrew tsayôn), perhaps following a various reading, perhaps interpreting.

The branch of the terrible ones ... —Better, the song. The Hebrew noun is a rare one, but is found in this sense in Song of Solomon 2:12. The triumph song of the dread oppressors is thought of as blighting the world like a spell of evil; but this also is to be brought low, and hushed in silence.