'Waster' in the Bible

Let mine outcasts dwell with thee, Moab; be thou a covert to them from the face of the waster. For the extortioner is at an end, the wasting hath ceased, the oppressors are consumed out of the land.

And the waster shall come upon every city, that not a city shall escape; and the valley shall perish, and the plateau shall be destroyed: as Jehovah hath said.