NET

21 When Joshua and all Israel saw that the men in ambush had captured the city and that the city was going up in smoke, they turned around and struck down the men of Ai.

Darby

21 When Joshua and all Israel saw that the ambush had taken the city, and that the smoke of the city went up, they turned again, and slew the men of Ai.

KJV

21 And when Joshua and all Israel saw that the ambush had taken the city, and that the smoke of the city ascended, then they turned again, and slew the men of Ai.

Strong's

21 And when Joshua^H3091 and all Israel^H3478 saw^H7200 that the ambush^H693 had taken^H3920 the city^H5892, and that the smoke^H6227 of the city^H5892 ascended^H5927, then they turned again^H7725, and slew^H5221 the men^H582 of Ai^H5857.