Judges 8:30
Gideon had seventy sons of his own, since he had many wives.

Judges 8:31
His concubine, who dwelt in Shechem, also bore him a son, and he named him Abimelech.

Judges 9:2
"Please ask all the leaders of Shechem, 'Is it better for you that seventy men, all the sons of Jerubbaal, rule over you, or just one man?' Remember that I am your own flesh and blood."

Judges 9:5
He went to his father's house in Ophrah, and on one stone murdered his seventy brothers, the sons of Jerubbaal. But Jotham, the youngest son of Jerubbaal, survived, because he hid himself.

Judges 9:17
for my father fought for you and risked his life to deliver you from the hand of Midian,

Judges 9:19
if you have acted faithfully and honestly toward Jerubbaal and his house this day, then may you rejoice in Abimelech, and he in you.