Judges 9:2

9:2 “Tell all the leaders of Shechem this: ‘Why would you want to have seventy men, all Jerub-Baal’s sons, ruling over you, when you can have just one ruler? Recall that I am your own flesh and blood.’”

Judges 9:5

9:5 He went to his father’s home in Ophrah and murdered his half-brothers, the seventy legitimate sons of Jerub-Baal, on one stone. Only Jotham, Jerub-Baal’s youngest son, escaped, because he hid.