The man shapes iron into a cutting tool and does his work over the coals, fashioning it with hammers and working it with his strong arm. He also gets hungry and his strength fails; he drinks no water and becomes weary.

And He will judge between the nations,
And will render decisions for many peoples;
And they will hammer their swords into plowshares and their spears into pruning hooks.
Nation will not lift up sword against nation,
And never again will they learn war.

So the craftsman encourages the smelter,
And he who smooths metal with the hammer encourages him who beats the anvil,
Saying of the soldering, “It is good”;
And he fastens it with nails,
So that it will not totter.