Isaiah 27:2 - Ellicott's Commentary On The Whole Bible

In that day sing ye... — The prophet appears once again, as in Isaiah 26:1, as the hymn writer of the future day of the triumph of the redeemed. He had chanted a dirge over the vineyard that was unfruitful, and therefore given over to desolation. He now changes the wailing into a poem. The word translated “red wine” (comp. Deuteronomy 32:14) signifies “fiery,” or “foaming.” The LXX. seems to have followed a different text, giving (with the alteration of a single letter) the meaning, “a pleasant vineyard.”