Judges 9:30-33

30And Zebul the ruler of the city heard the words of Gaal the son of Ebed, and his anger was kindled;

31and he sent messengers to Abimelech craftily, saying, Behold, Gaal the son of Ebed and his brethren are come to Shechem, and behold, they shut up the city against thee;

32and now, rise up by night, thou and the people that are with thee, and lie in ambush in the fields.

33And it shall be in the morning when the sun is up, thou shalt rise early, and fall upon the city; and behold, he and the people that is with him shall come out against thee, and thou shalt do with him as thou shalt find occasion.