'Sharp' in the Bible

Whose arrows are sharp, and all of his bows are bent. The hoofs of his horses are reckoned like flint, and his wheels like the storm wind.

Look! I will make you into a new sharp threshing sledge, {with} sharp edges. You shall thresh and crush [the] mountains, and you shall make [the] hills like chaff.

And he {made} my mouth like a sharp sword; he hid me in the shadow of his hand, and he {made} me like an sharpened arrow; he hid me in his quiver.