Judges 9:20

20 but if not, let fire come out from Abimelech, and devour the men of Sicima, and the house of Bethmaalo; and let fire come out from the men of Sicima and from the house of Bethmaalo, and devour Abimelech.

Judges 9:20 In-Context

18 and ye are risen up this day against the house of my father, and have slain his sons, being seventy men, upon one stone, and have made Abimelech the son of his bondwoman king over the men of Sicima, because he is your brother:
19 if then ye have done truly and faithfully with Jerobaal, and with his house this day, rejoice ye in Abimelech, and let him also rejoice over you:
20 but if not, let fire come out from Abimelech, and devour the men of Sicima, and the house of Bethmaalo; and let fire come out from the men of Sicima and from the house of Bethmaalo, and devour Abimelech.
21 And Joatham fled, and ran away, and went as far as Baeer, and dwelt there out of the way of his brother Abimelech.
22 And Abimelech reigned over Israel three years.

The Brenton translation of the Septuagint is in the public domain.