'Threshing floor' in the Bible

And when they came unto the threshingfloor of Chidon, Uzzah put forth his hand to hold the ark; for the oxen stumbled.

And God sent an angel unto Jerusalem to destroy it: and as he was destroying, the LORD beheld, and he relented of the disaster, and said to the angel that destroyed, It is enough, restrain now your hand. And the angel of the LORD stood by the threshingfloor of Ornan the Jebusite.

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 in the threshingfloor of Ornan the Jebusite.

And as David came to Ornan, Ornan looked and saw David, and went out of the threshingfloor, and bowed himself to David with his face to the ground.

Then David said to Ornan, Give me the place of this threshingfloor, that I may build an altar on it unto the LORD: you shall give it to me for the full price: that the plague may be averted from the people.

At that time when David saw that the LORD had answered him in the threshingfloor of Ornan the Jebusite, then he sacrificed there.