'Sharp' in the Bible

Their arrows are sharp, all their bows ready for action. Their horses' hooves seem like flint, and their chariot wheels spin like a whirlwind.

For caraway is not threshed with a sharp sledge, nor is a cart wheel rolled over cumin. Instead, caraway is winnowed with a stick, and cumin with a rod.

"See, I'm making you into a new, sharp, and multi-tooth threshing sledge. You'll thresh and crush the mountains, and make the hills like chaff.

He made my mouth like a sharp sword; he hid me in the shadow of his hands. He made me like a polished arrow and hid me away in his quivers.