Parallel
Isaiah 41:15
King James Version (1769 Blayney revision, with Apocrypha) · Berean Standard Bible
Behold, I will make thee a new sharp threshing instrument having teeth (note: Heb. mouths): thou shalt thresh the mountains, and beat them small, and shalt make the hills as chaff.
Behold, I will make you into a threshing sledge, new and sharp, with many teeth. You will thresh the mountains and crush them, and reduce the hills to chaff.