'Unable' in the Bible

The Israelites are unable to stand before their enemies; they retreat because they have become subject to annihilation. I will no longer be with you, unless you destroy what has contaminated you.

When the men of Ai turned around, they saw the smoke from the city ascending into the sky and were so shocked they were unable to flee in any direction. In the meantime the men who were retreating to the desert turned against their pursuers.

The men of Judah were unable to conquer the Jebusites living in Jerusalem. The Jebusites live with the people of Judah in Jerusalem to this very day.

But the men of Manasseh were unable to conquer these cities; the Canaanites managed to remain in those areas.