12 That is why the Israelites cannot stand against their enemies; they turn their backs and run because they have been made liable to destruction. I will not be with you anymore unless you destroy whatever among you is devoted to destruction.
12 Therefore the children of Israel could not stand before their enemies, but turned their backs before their enemies, because they were accursed: neither will I be with you any more, except ye destroy the accursed from among you.
English Standard Version
12 Therefore the people of Israel cannot stand before their enemies. They turn their backs before their enemies, because they have become devoted for destruction.That is, set apart (devoted) as an offering to the Lord (for destruction) I will be with you no more, unless you destroy the devoted things from among you.
12 The People of Israel can no longer look their enemies in the eye - they themselves are plunder. I can't continue with you if you don't rid yourselves of the cursed things.
New King James Version
12 Therefore the children of Israel could not stand before their enemies, but turned their backs before their enemies, because they have become doomed to destruction. Neither will I be with you anymore, unless you destroy the accursed from among you.
New Living Translation
12 That is why the Israelites are running from their enemies in defeat. For now Israel itself has been set apart for destruction. I will not remain with you any longer unless you destroy the things among you that were set apart for destruction.
God awakens Joshua to inquiry, by telling him that when this accursed thing was put away, all would be well. Times of danger and trouble should be times of reformation. We should look at home, into our own hearts, into our own houses, and make diligent search to find out if there be not some accursed thing there, which God sees and abhors; some secret lust, some unlawful gain, some undue withholding from God or from others. We cannot prosper, until the accursed thing be destroyed out of our hearts, and put out of our habitations and our families, and forsaken in our lives. When the sin of sinners finds them out, God is to be acknowledged. With a certain and unerring judgment, the righteous God does and will distinguish between the innocent and the guilty; so that though the righteous are of the same tribe, and family, and household with the wicked, yet they never shall be treated as the wicked.