2 Samuel 24:22 KJV

20And Araunah looked, and saw the king and his servants coming on toward him: and Araunah went out, and bowed himself before the king on his face upon the ground.

21And Araunah said, Wherefore is my lord the king come to his servant? And David said, To buy the threshingfloor of thee, to build an altar unto the LORD, that the plague may be stayed from the people.

22And Araunah said unto David, Let my lord the king take and offer up what seemeth good unto him: behold, here be oxen for burnt sacrifice, and threshing instruments and other instruments of the oxen for wood.

23All these things did Araunah, as a king, give unto the king. And Araunah said unto the king, The LORD thy God accept thee.

24And 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.