1 Chronicles 21:18

18Then the angel of the Lord commanded Gad to say to David, that David should go up and build an altar to the Lord on the 21:18 This threshing floor was on Mt. Moriah in Jerusalem, thought also to be the area where Abraham offered Isaac as a sacrifice. Solomon later built the temple on the site of David’s altar (2 Chr 3:1).threshing floor of Ornan the Jebusite.