Isaiah
Isaiah 30:29BSB·traditional attribution

You will sing as on the night of a holy festival, and your heart will rejoice like one who walks to the music of a flute, going up to the mountain of the LORD, to the Rock of Israel.

John Calvin Reformed @genevareformer

29. And you shall have a song as in the night. Here he declares that all the punishments which he threatened against the Assyrians shall tend to the advantage of the Church, because the Lord punishes the outrages committed against his people not less severely than if they had been committed against himself.

Matthew Henry Presbyterian @wholebiblehenry

This terrible prediction of the ruin of the Assyrian army, though it is a threatening to them, is part of the promise to the Israel of God, that God would not only punish the Assyrians for the mischief they had done to the Israel of God, but would disable and deter them from doing the like again; and this prediction, which would now shortly be...

Commenting on Isaiah 30:27-33

John Gill Reformed Baptist @doctorgill

Ye shall have a song,.... That is, the Jews should have a song, and sing it upon the ruin of the Assyrian army; as the Israelites had, when Pharaoh and his host were drowned in the Red Sea; and so will the Christian church have one, at the fall of Babylon, Rev 15:1, as in the night, when a holy solemnity is kept; and gladness...