Judges 9:27-31

So they went out to the field and gathered the grapes of their vineyards and trampled them, and held a festival; and they went into the house of their god, and ate and drank and cursed Abimelech.

Then Gaal the son of Ebed said, “Who is Abimelech, and who is Shechem, that we should serve him? Is he not the son of Jerubbaal, and is Zebul not his governor? Serve the men of Hamor the father of Shechem; but why should we serve him?

If only this people were under my authority! Then I would do away with Abimelech.” And he said to Abimelech, “Enlarge your army and come out!”

When Zebul the leader of the city heard the words of Gaal the son of Ebed, his anger burned.

So using deception, he successfully sent messengers to Abimelech, saying, “Behold, Gaal the son of Ebed and his relatives have come to Shechem; and behold, they are stirring up the city against you.