2 Samuel 24:24-25

But the king said to Araunah, “No, but I will buy it from you for a price. I will not offer burnt offerings to the LORD my God that cost me nothing.” So David bought the threshing floor and the oxen for fifty shekels of silver. And David built there an altar to the LORD and offered burnt offerings and peace offerings. So the LORD responded to the plea for the land, and the plague was averted from Israel.