OT-POET.filter - kjv sharpen:

kjv@Job:16:9 @ He teareth me in his wrath, who hateth me: he gnasheth upon me with his teeth; mine enemy sharpeneth his eyes upon me.

kjv@Psalms:140:3 @ They have sharpened their tongues like a serpent; adders' poison is under their lips. Selah.

kjv@Proverbs:27:17 @ Iron sharpeneth iron; so a man sharpeneth the countenance of his friend.