Judges 9:3 (KJV)

And Abimelech the son of Jerubbaal went to Shechem unto his mother’s brethren, and communed with them, and with all the family of the house of his mother’s father, saying,

Speak, I pray you, in the ears of all the men of Shechem, Whether is better for you, either that all the sons of Jerubbaal, which are threescore and ten persons, reign over you, or that one reign over you? remember also that I am your bone and your flesh.

And his mother’s brethren spake of him in the ears of all the men of Shechem all these words: and their hearts inclined to follow Abimelech; for they said, He is our brother.

And they gave him threescore and ten pieces of silver out of the house of Baal–berith, wherewith Abimelech hired vain and light persons, which followed him.

And he went unto his father’s house at Ophrah, and slew his brethren the sons of Jerubbaal, being threescore and ten persons, upon one stone: notwithstanding yet Jotham the youngest son of Jerubbaal was left; for he hid himself.