1 Chronicles 22:3, 14

David provided large amounts of iron for the nails that would be needed for the doors in the gates and for the clamps, and he gave more bronze than could be weighed.

“I have worked hard to provide materials for building the Temple of the LORD—nearly 4,000 tons of gold, 40,000 tons of silver, and so much iron and bronze that it cannot be weighed. I have also gathered timber and stone for the walls, though you may need to add more.