2 Samuel 24:24-25

24“No!” the king said to Araunah. “I must buy it from you at a ⌞fair⌟ price. I won’t offer the Lord my God burnt sacrifices that cost me nothing.” So David bought the threshing floor and the oxen for 1¼ pounds of silver.

25David built an altar for the Lord there and sacrificed burnt offerings and fellowship offerings. So the Lord heard the prayers for the country, and the plague on Israel stopped.