'Threshing floors' in the Bible

It was reported to David: “Look, the Philistines are fighting against Keilah and raiding the threshing floors.”

Then the iron, the fired clay, the bronze, the silver, and the gold were shattered and became like chaff from the summer threshing floors. The wind carried them away, and not a trace of them could be found. But the stone that struck the statue became a great mountain and filled the whole earth.

The threshing floors will be full of grain,and the vats will overflowwith new wine and olive oil.