'Wields' in the Bible

"Does the ax exalt itself over the one who swings it? Or does the saw magnify itself in opposition to the one who wields it? As if a rod were to wield those who lift it, or as if a club were to brandish the one who is not wood!

The craftsman encourages the metalsmith, the one who wields the hammer encourages the one who pounds on the anvil. He approves the quality of the welding, and nails it down so it won't fall over."