Lamech’s other wife, Zillah, gave birth to a son named Tubal-cain. He became an expert in forging tools of bronze and iron. Tubal-cain had a sister named Naamah.

If you use stones to build my altar, use only natural, uncut stones. Do not shape the stones with a tool, for that would make the altar unfit for holy use.

“Then build an altar there to the Lord your God, using natural, uncut stones. You must not shape the stones with an iron tool.

He followed the commands that Moses the Lord’s servant had written in the Book of Instruction: “Make me an altar from stones that are uncut and have not been shaped with iron tools.” Then on the altar they presented burnt offerings and peace offerings to the Lord.

One must use iron tools to chop them down; they will be totally consumed by fire.”

The stones used in the construction of the Temple were finished at the quarry, so there was no sound of hammer, ax, or any other iron tool at the building site.

But the king of Assyria will not understand that he is my tool; his mind does not work that way. His plan is simply to destroy, to cut down nation after nation.

The blacksmith stands at his forge to make a sharp tool, pounding and shaping it with all his might. His work makes him hungry and weak. It makes him thirsty and faint.

I will call for wreckers, who will bring out their tools to dismantle you. They will tear out all your fine cedar beams and throw them on the fire.