This expression indicates a profound feeling of despair and utter inability to understand the situation. Joshua’s prayer almost takes on the spirit of murmuring and complaining, so characteristic of the children of Israel on numerous occasions. But even the best of men at times give way to discouragement and fear (see 1 Kings 19:9-18; Jonah 4:1-9). Joshua rightly interpreted the defeat at Ai as a mark of God’s displeasure upon His people, yet did not understand the reason for it. His words may have been ill-chosen, but his resort to prayer at such a moment of crisis is commendable.