Sieges: Cities Invested by Frequently Taken by Ambush

So he took his men, divided them into three companies, and lay in wait in the fields. When he saw the people coming out of the city, he rose up against them and attacked them.

Then Abimelech and the companies with him rushed forward and took their stand at the entrance of the city gate. The other two companies rushed against all who were in the fields and struck them down.