2 Samuel 24:17-21

Then David spoke to the Lord when he saw the angel who was striking down the people, and said, “Behold, it is I who have sinned, and it is I who have done wrong; but these sheep, what have they done? Please let Your hand be against me and against my father’s house!” David Builds an Altar

So Gad came to David that day and said to him, “Go up, erect an altar to the Lord on the threshing floor of Araunah the Jebusite.”

Then David went up in accordance with the word of Gad, just as the Lord had commanded.

And Araunah looked down and saw the king and his servants crossing over toward him; so Araunah went out and bowed his face to the ground before the king.

Then Araunah said, “Why has my lord the king come to his servant?” And David said, “To buy the threshing floor from you, in order to build an altar to the Lord, so that the plague may be withdrawn from the people.”