'Sharp' in the Bible

Thine arrows are sharp peoples fall under thee in the heart of the king's enemies.

Thy tongue deviseth mischievous things, like a sharp razor, practising deceit.

My soul is in the midst of lions; I lie down among them that breathe out flames, the sons of men, whose teeth are spears and arrows, and their tongue a sharp sword.

Sharp arrows of a mighty one, with burning coals of broom-wood.