David said to God, I have sinned greatly, in that I have done this thing: but now, put away, I beg you, the iniquity of your servant; for I have done very foolishly.
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 ).