Behold, I will make thee a new sharp threshing instrument having teeth: thou shalt thresh the mountains, and beat [them] small, and shalt make the hills as chaff.
Jewish Publication Society of America Version (JPS1917) - Isaiah 41:15 >Behold, I make thee a new threshing-sledge having sharp teeth; thou shalt thresh the mountains, and beat them small, and shalt make the hills as chaff.