Judges 7:8-11

So the three hundred men took people’s provisions [for the journey] and their trumpets [made of rams’ horns] in their hands. And Gideon sent [away] all the other men of Israel, each to his tent, but kept the three hundred men. And the camp of Midian was below him in the valley. Now on that same night the LORD said to Gideon, “Arise, go down against their camp, for I have given it into your hand. 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.