What does 1 Chronicles 29:2 mean?

So I’ve done everything I could to get ready for the Lord’s house. I’ve set aside gold for things made of gold, silver for silver, bronze for bronze, iron for iron, and wood for wood, plus onyx, inlaid stones, turquoise, all kinds of precious stones, and marble—more than I can count. 1 Chronicles 29:2 - Modern Text Bible

(David explains that he’s gathered all kinds of materials, sparing no expense, to make sure the temple is as beautiful and worthy as possible.)