1 Chronicles 21:18-27

Then the angel of the LORD commanded Gad to say to David, that David should go up and build an altar to the LORD on the threshing floor of Ornan the Jebusite. So David went up at the word of Gad, which he spoke in the name of the LORD. Now Ornan turned back and saw the angel, and his four sons who were with him hid themselves. And Ornan was threshing wheat. As David came to Ornan, Ornan looked and saw David, and went out from the threshing floor and prostrated himself before David with his face to the ground. Then David said to Ornan, “Give me the site of this threshing floor, that I may build on it an altar to the LORD; for the full price you shall give it to me, that the plague may be restrained from the people.” Ornan said to David, “Take it for yourself; and let my lord the king do what is good in his sight. See, I will give the oxen for burnt offerings and the threshing sledges for wood and the wheat for the grain offering; I will give it all.” But King David said to Ornan, “No, but I will surely buy it for the full price; for I will not take what is yours for the LORD, or offer a burnt offering which costs me nothing.” So David gave Ornan 600 shekels of gold by weight for the site. Then David built an altar to the LORD there and offered burnt offerings and peace offerings. And he called to the LORD and He answered him with fire from heaven on the altar of burnt offering. The LORD commanded the angel, and he put his sword back in its sheath.