What does 1 Chronicles 22:14 mean?

'Look, I’ve worked hard to get ready for the Lord’s house—about four thousand tons of gold, forty thousand tons of silver, and more bronze and iron than anyone can weigh. I’ve also gathered wood and stone, and you can add even more.' 1 Chronicles 22:14 - Modern Text Bible

(David lists the huge amount of resources he’s gathered, showing his dedication and giving Solomon a strong start.)