Job 41:26 KJV

24His heart is as firm as a stone; yea, as hard as a piece of the nether millstone.

25When he raiseth up himself, the mighty are afraid: by reason of breakings they purify themselves.

26The sword of him that layeth at him cannot hold: the spear, the dart, nor the habergeon.

27He esteemeth iron as straw, and brass as rotten wood.

28The arrow cannot make him flee: slingstones are turned with him into stubble.