Joshua 8:21

And when Joshua and all Israel saw that the lyers-await had taken the city and that the smoke of it ascended, they turned again and laid on the men of Ai.

Treasury of Scripture Knowledge

Summary

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.

General references

Bible References

General references

2 Samuel 10:9
When Joab saw that the front of the battle was before and after, he chose of all the best of Israel and put them in array against the Syrians.