The children of Israel went up and wept before Yahweh until even; and they asked of Yahweh, saying, Shall I again draw near to battle against the children of Benjamin my brother? Yahweh said, Go up against him.
". . . by reducing the size of the army, God was showing them that numbers alone did not guarantee victory. They needed to trust God to accomplish the impossible, as he did for Gideon’s three hundred (cf. Judges 7:7)." [Note: Wolf, p. 498.] 