1 Chronicles 21:18

15 God sent an angel to Jerusalem to destroy it. As he was about to destroy, the Lord saw, and he relented of the disaster, and said to the destroying angel, "It is enough; now stay your hand." The angel of the Lord was standing by the threshing floor of Ornan the Jebusite.

16 David lifted up his eyes, and saw the angel of the Lord 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.

17 David said to God, "Isn't it I who commanded the people to be numbered? It is even I who have sinned and done very wickedly; but these sheep, what have they done? Please let your hand, O Lord my God, be against me, and against my father's house; but not against your people, that they should be plagued."

18 Then the angel of the Lord commanded Gad to tell David that David should go up, and raise an altar to the Lord in the threshing floor of Ornan the Jebusite.

19 David went up at the saying of Gad, which he spoke in the name of the Lord.

20 Ornan turned back, and saw the angel; and his four sons who were with him hid themselves. Now Ornan was threshing wheat.

21 As David came to Ornan, Ornan looked and saw David, and went out of the threshing floor, and bowed himself to David with his face to the ground.