David lifted up his eyes, and saw the angel of Yahweh standing between earth and the sky, having a drawn sword in his hand stretched out over Jerusalem. Then David and the elders, clothed in sackcloth, fell on their faces.
So then the angel of the LORD commanded Gad to say to David, that David should go up, and set up an altar unto the LORD there in the threshingfloor of Ornan the Jebusite ( 1 Chronicles 21:18 ).