'Attacker' in the Bible

Go not out into the field or by the way; for there is the sword of the attacker, and fear on every side.

I will send them in flight, as from an east wind, before the attacker; I will let them see my back and not my face on the day of their downfall.

And the attacker will come against every town, not one will be safe; and the valley will be made waste, and destruction will come to the lowland, as the Lord has said.

Come down from your glory, O people of Dibon, and take your seat in the place of the waste; for the attacker of Moab has gone up against you, sending destruction on your strong places.