It was so, when Gideon heard the telling of the dream, and the interpretation of it, that he worshiped; and he returned into the camp of Israel, and said, Arise; for Yahweh has delivered into your hand the host of Midian.
And so of the thirty-two thousand that came to fight with Gideon, twenty-two thousand were afraid to fight so they went home. Now there was a reason that God wanted to get rid of the fearful. It's not good to have men who are really frightened in the battle lines with you, for they're apt to panic in a time of crises and to flee and leave that flank exposed.So, God first got rid of the fearful.