1 Chronicles 21:18-20

New Catholic Bible

¹⁸ The angel of the Lord then commanded Gad to tell David that David should go and set up an altar to the Lord on the threshing floor of Ornan, the Jebusite. ¹⁹ So David went up as Gad, who spoke in the name of the Lord, had said.

²⁰ Ornan turned around, and he saw the angel, and his four sons who were with him went and hid themselves while Ornan remained on the threshing floor.