1 Chronicles 21:24-27
24-27David replied to Araunah, "No. I'm buying it from you, and at the full market price. I'm not going to offer God sacrifices that are no sacrifice." So David bought the place from Araunah for six hundred shekels of gold. He built an altar to God there and sacrificed Whole-Burnt-Offerings and Peace-Offerings. He called out to God and God answered by striking the altar of Whole-Burnt-Offering with lightning. Then God told the angel to put his sword back into its scabbard.
28And that's the story of what happened when David saw that God answered him on the threshing floor of Araunah the Jebusite at the time he offered the sacrifice.