He went to his father's house at Ophrah, and killed his brothers the sons of Jerubbaal, being seventy persons, on one stone: but Jotham the youngest son of Jerubbaal was left; for he hid himself.
[Now look fellas] who is Abimelech, and who is Shechem, that we should serve them? is he not the son of Jerubbaal? and Zebul his officer? serve the men of Hamor the father of Shechem: for why should we serve him? ( Judges 9:28 )