King James Version
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.English Standard Version
Behold, I make of you a threshing sledge, new, sharp, and having teeth; you shall thresh the mountains and crush them, and you shall make the hills like chaff;Catholic Public Domain Version
I have established you like a new threshing cart, having serrated blades. You will thresh the mountains and crush them. And you will turn the hills into chaff