Judges 7:10-12

But if you are afraid to go down [by yourself], go with Purah your servant down to the camp, and you will hear what they say; and afterward you will have the courage to go down against the camp.” Then he went down with Purah his servant to the outposts of the army that was in the camp. Now the Midianites and the Amalekites and all the sons of the east were lying [camped] in the valley, as countless as locusts; and their camels were without number, as numerous as the sand on the seashore.