Then the angel of Yahweh commanded Gad to tell David, that David should go up, and raise an altar to Yahweh in the threshing floor of Ornan the Jebusite.
And God was displeased with this thing; therefore he smote Israel. And David said unto God, I have sinned greatly, because I have done this thing: but now, I beseech thee, do away the iniquity of thy servant; for I have done very foolishly ( 1 Chronicles 21:7-8 ).