'Threshing floor' in the Bible

Then Solomon began to build the house of the Lord in Jerusalem on Mount Moriah, where the Lord appeared to his father David, in the place that David had prepared, on the threshing floor of Ornan the Jebusite.

Now the king of Israel and Jehoshaphat the king of Judah were sitting, each on his throne, arrayed in their robes; they were sitting at the threshing floor at the entrance of the gate of Samaria; and all the prophets were prophesying before them.