'Unable' in the Bible

The {Israelites} were unable to stand before their enemies; {they fled from their enemies} because they have become a thing devoted for destruction. {I will be with you no more} unless you destroy the devoted things from among you.

Get up, sanctify the people, and say, 'Sanctify yourselves for tomorrow. Thus says Yahweh the God of Israel: "[There are] devoted things in your midst, O Israel. You will be unable to stand before you enemies until you remove the devoted things from your midst."

But the descendants of Judah were unable to drive out the Jebusites, the inhabitants of Jerusalem, so the Jebusites live with the descendants of Judah in Jerusalem to this day.