'Treaders' in the Bible

Sojourn in thee do My outcasts, O Moab, Be a secret hiding-place to them, From the face of a destroyer, For ceased hath the extortioner, Finished hath been a destroyer, Consumed the treaders down out of the land.

And gladness is taken away, and joy out of the plentiful field; and in the vineyards there shall be no singing, neither shall there be shouting: the treaders shall tread out no wine in their presses; I have made their vintage shouting to cease.