Read 2 Samuel 24:24 Using Other Translations
And the king said unto Araunah, Nay; but I will surely buy it of thee at a price: neither will I offer burnt offerings unto the LORD my God of that which doth cost me nothing. So David bought the threshingfloor and the oxen for fifty shekels of silver.
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.
But the king replied to Araunah, “No, I insist on buying it, for I will not present burnt offerings to the LORD my God that have cost me nothing.” So David paid him fifty pieces of silver for the threshing floor and the oxen.