Now therefore up by night,.... The night following, that no time might be lost:

and the people that is with thee; the troops he had with him; not only such he had for his own guards, but what he had been raising, having intelligence before this of the revolt of the Shechemites from him:

and lie in wait in the fields; he thought it most advisable for him to march with the forces he had, from the place where he was in the night, and less liable to be discovered, and remain in the fields of Shechem till morning, and then come upon Shechemites before they were aware, and surprise them.

At the same time he called upon Abimelech to draw near, with the people that he had with him, during the night, and to lie in wait in the field (ארב, to place one's self in ambush), and the next morning to spread out with his army against the town; and when Gaal went out with his followers, he was to do to him "as his hand should find," i.e., to deal with him as he best could and would under the circumstances. (On this formula, see at 1 Samuel 10:7; 1 Samuel 25:8.)

Now therefore up by night, thou and the people that is with thee, and lie in wait in the field:

9:30-49 Abimelech intended to punish the Schechemites for slighting him now, but God punished them for their serving him formerly in the murder of Gideon's sons. When God uses men as instruments in his hand to do his work, he means one thing, and they another. That, which they hoped would have been for their welfare, proved a snare and a trap, as those will certainly find, who run to idols for shelter; such will prove a refuge of lies.