Judges 9:23-24

9:23 God sent a spirit to stir up hostility between Abimelech and the leaders of Shechem. He made the leaders of Shechem disloyal to Abimelech. 9:24 He did this so the violent deaths of Jerub-Baal’s seventy sons might be avenged and Abimelech, their half-brother who murdered them, might have to pay for their spilled blood, along with the leaders of Shechem who helped him murder them.