'Threshing floor' in the Bible

Then Solomon began to build the Lord’s temple in Jerusalem on Mount Moriah where the Lord had appeared to his father David, at the site David had prepared on the threshing floor of Ornan the Jebusite.

Now the king of Israel and King Jehoshaphat of Judah, clothed in royal attire, were each sitting on his own throne. They were sitting on the threshing floor at the entrance to Samaria’s gate, and all the prophets were prophesying in front of them.