What does 1 Chronicles 21:23 mean?

Ornan said to David, 'Take it! Let my lord the king do whatever he wants. I’ll even give you the oxen for burnt offerings, the threshing sledges for wood, and the wheat for the offering. It’s all yours.' 1 Chronicles 21:23 - Modern Text Bible

(Ornan generously offers everything needed for the sacrifice, showing his willingness to help.)