They are demonic spirits who work miracles and go out to all the rulers of the world to gather them for battle against the Lord on that great judgment day of God the Almighty.
When the men of Benjamin came out to attack, they were drawn away from the town. And as they had done before, they began to kill the Israelites. About thirty Israelites died in the open fields and along the roads, one leading to Bethel and the other leading back to Gibeah.