2 Samuel 24:18-25 - David's Altar
18 And Gad came that day to David, and said to him, Go up, rear an altar to LORD in the threshing-floor of Araunah the Jebusite. 19 And David went up according to the saying of Gad, as LORD commanded. 20 And Araunah looked forth, and saw the king and his servants coming on toward him. And Araunah went out, and bowed himself before the king with his face to the ground.
21 And Araunah said, Why has my lord the king come to his servant? And David said, To buy the threshing-floor from thee, to build an altar to LORD that the plague may be halted from the people.
22 And Araunah said to David, Let my lord the king take and offer up what seems good to him. Behold, the oxen for the burnt-offering, and the threshing instruments and the yokes of the oxen for the wood. 23 All this, O king, Araunah gives to the king. And Araunah said to the king, LORD thy God accept thee.
24 And the king said to Araunah, No, but I will truly buy it from thee at a price. Neither will I offer burnt-offerings to LORD my God which cost me nothing. So David bought the threshing-floor and the oxen for fifty shekels of silver 25 And David built there an altar to LORD, and offered burnt-offerings and peace-offerings. So LORD was entreated for the land, and the plague was halted from Israel.