Parallel
Isaiah 42:15
Rahlfs Septuagint (1935) · Berean Standard Bible
καὶ θήσω ποταμοὺς εἰς νήσους καὶ ἕλη ξηρανῶ
I will lay waste the mountains and hills and dry up all their vegetation. I will turn the rivers into dry land (note: Or coastlands or islands) and drain the marshes.