John Gill Commentary Judges 9:3

"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." — Judges 9:3 (ASV)

And his mother's brethren spoke of him in the ears of the men
of Shechem all these words
Got them together in some certain place, and laid before them all that Abimelech had suggested to them, and spoke in his favour to them:

and their hearts inclined to follow Abimelech, for they said, he is our
brother ;
being fond of kingly government, as the Israelites generally were, it seemed most agreeable to them to have one king over them, and none more acceptable than one so nearly related to them, who they doubted not, from his alliance to them, would be ready to oblige them on all occasions.