'Threshing floor' in the Bible

Then Solomon began to build the house of the LORD at Jerusalem on mount Moriah, where the LORD appeared unto David his father, in the place that David had prepared in the threshingfloor of Ornan the Jebusite.

And the king of Israel and Jehoshaphat king of Judah sat each of them on his throne, clothed in their robes, and they sat at a threshing floor at the entrance of the gate of Samaria; and all the prophets prophesied before them.