'Chaff' in the Bible

"At that time the people of Judah and Jerusalem will be told, 'A scorching wind will sweep down from the hilltops in the desert on my dear people. It will not be a gentle breeze for winnowing the grain and blowing away the chaff.

"The Lord says, 'That is why I will scatter your people like chaff that is blown away by a desert wind.

I will send people to winnow Babylonia like a wind blowing away chaff. They will winnow her and strip her land bare. This will happen when they come against her from every direction, when it is time to destroy her.