'Destroyer' in the Bible

Let mine outcasts dwell with thee; as for Moab, be thou a covert to him from the face of the destroyer. For the extortioner is brought to nought, destruction ceaseth, the oppressors are consumed out of the land.

A grievous vision is declared unto me; the treacherous man dealeth treacherously, and the destroyer destroyeth. Go up, O Elam; besiege, O Media; all the sighing thereof have I made to cease.