Yahweh said to Gideon, The people are yet too many; bring them down to the water, and I will try them for you there: and it shall be, that of whom I tell you, This shall go with you, the same shall go with you; and of whoever I tell you, This shall not go with you, the same shall not go.
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.