'Sharp' in the Bible

their arrows are sharp, and all their bows bent; their horses' hoofs are reckoned as the flint, and their wheels as a whirlwind.

Behold, I have made of thee a new sharp threshing instrument having double teeth: thou shalt thresh and beat small the mountains, and shalt make the hills as chaff;

The worker in wood stretcheth out a line; he marketh it out with red chalk; he formeth it with sharp tools, and he marketh it out with the compass, and maketh it after the figure of a man, according to the beauty of man: that it may remain in the house.

And he hath made my mouth like a sharp sword, he hath concealed me under the shadow of his hand, and he hath made me a polished shaft: in his quiver hath he hidden me.