Judges 9:19-20

19— if ye then have dealt truly and sincerely with Jerubbaal and with his house this day, rejoice ye in Abimelech, and let him also rejoice in you;

20but if not, let fire come out from Abimelech, and devour the citizens of Shechem and the house of Millo; and let fire come out from the citizens of Shechem and from the house of Millo, and devour Abimelech.