Isaiah 41:7

The artificer has become strong, and the coppersmith that smites with the hammer, [and] forges also: sometimes he will say, It is a piece well joined: they have fastened them with nails; they will fix them, and they shall not be moved.

So the carpenter encouraged the goldsmith, and he that smootheth with the hammer him that smote the anvil, saying, It is ready for the sodering: and he fastened it with nails, that it should not be moved.

So the carpenter encourages the goldsmith. He who smooths with the hammer encourages him who strikes the anvil, saying of the soldering, “It is good;” and he fastens it with nails, that it might not totter.