'Altar' in the Bible

And that day Gad came to David and said to him, Go up, and put up an altar to the Lord on the grain-floor of Araunah the Jebusite.

And Araunah said, Why has my lord the king come to his servant? And David said, To give you a price for your grain-floor, so that I may put up an altar to the Lord, and the disease may be stopped among the people.

And there David put up an altar to the Lord, making burned offerings and peace-offerings. So the Lord gave ear to his prayer for the land, and the disease came to an end in Israel.