Joshua 7:5-8

5and the men of Ai killed about thirty-six of their men and chased them before the gate as far as Shebarim and struck them at the descent. And the hearts of the people melted and became as water.

6Then Joshua tore his clothes and fell to the earth on his face before the ark of the Lord until the evening, he and the elders of Israel. And they put dust on their heads.

7And Joshua said, "Alas, O Lord God, why have you brought this people over the Jordan at all, to give us into the hands of the Amorites, to destroy us? Would that we had been content to dwell beyond the Jordan!

8O Lord, what can I say, when Israel has turned their backs before their enemies!