15Then God sent an angel to destroy Jerusalem, but as the angel was doing so, the LORD saw it and relented from the calamity, and He said to the angel who was destroying the people, “Enough! Withdraw your hand now!” At that time the angel of the LORD was standing by the threshing floor of Ornan the Jebusite.
16When David lifted up his eyes and saw the angel of the LORD standing between heaven and earth, with a drawn sword in his hand stretched out over Jerusalem, David and the elders, clothed in sackcloth, fell facedown.
— 1 Chronicles 21:15-16