34 Abimelech rose up, and all the people who were with him, by night, and they laid wait against Shechem in four companies.
*Minor differences ignored. Grouped by changes, with first version listed as example.
And Abimelech rose up, and all the people that were with him, by night,.... According to the advice of Zebul:
and they laid wait against Shechem in four companies; he divided his army into four parts, which he placed on the four sides of the city, at some distance from it, to act as they should have opportunity, to find ways and means of getting into it on either quarter.
On receiving this intelligence, Abimelech rose up during the night with the people that were with him, i.e., with such troops as he had, and placed four companies ("heads" as in Judges 7:16) in ambush against Shechem.
*More commentary available at chapter level.