# For did not Israel become an object for laughter to you?

"For you used to mock and laugh at the people of Israel."

# Israel ... Was he found ... at him ... about him

"the people of Israel ... Were they found ... at them ... about them"

# Was he found among thieves, so that you shook your head ... about him?

"Although they were not thieves, you still shook your head ... about him."

# shook your head at him

A symbolic action that shows feeling of scorn or disgust towards someone.