Isaiah 41:7
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.
World English Bible (Public Domain)
In context
Before · Isaiah 41:5–6
5The islands have seen, and fear. The ends of the earth tremble. They approach, and come. 6Everyone helps his neighbor. They say to their brothers, “Be strong!”
7So 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.