NET

20 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 wilderness turned against their pursuers.

Darby

20 And the men of Ai turned and saw, and behold, the smoke of the city went up to heaven, and they had no power to flee this way or that way; and the people that fled to the wilderness turned upon the pursuers.

KJV

20 And when the men of Ai looked behind them, they saw, and, behold, the smoke of the city ascended up to heaven, and they had no power to flee this way or that way: and the people that fled to the wilderness turned back upon the pursuers.