Judges 9:21

9:21 Then Jotham ran away to Beer and lived there to escape from Abimelech his half-brother.

Judges 9:24

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.