'Threshing' in the Bible

The Angel of the Lord came, and He sat under the oak that was in Ophrah, which belonged to Joash, the Abiezrite. His son Gideon was threshing wheat in the wine vat in order to hide it from the Midianites.

And Gideon saith, 'Therefore -- in Jehovah's giving Zebah and Zalmunna into my hand -- I have threshed your flesh with the thorns of the wilderness, and with the threshing instruments.'

And he taketh the elders of the city, and the thorns of the wilderness, and the threshing instruments, and teacheth by them the men of Succoth,