'Rebelled' in the Bible

"But now as for you, you've rebelled against my father's house today. You've murdered his sons 70 men in one place, and you've installed Abimelech, the son of his mistress, as king to rule over the "lords" of Shechem, since he's related to you.

The lords of Shechem rebelled against him by putting people on the tops of the mountains to ambush and rob everyone who passed by them on the road. So this was reported to Abimelech.