Judges 9:30-33

30When Zebul the ruler of the city heard the words of Gaal the son of Ebed, his anger was kindled.

31And he sent messengers to Abimelech secretly, saying, "Behold, Gaal the son of Ebed and his relatives have come to Shechem, and they are stirring up the city against you.

32Now therefore, go by night, you and the people who are with you, and set an ambush in the field.

33Then in the morning, as soon as the sun is up, rise early and rush upon the city. And when he and the people who are with him come out against you, you may do to them as your hand finds to do."