If you dream of being a scapegoat, then such dream suggest you to be more confident about yourself. It could also show that you are the victim in some situation. If you made someone a scapegoat, then it shows the lack of responsibility you have. Make sure you are liable for your own actions.
Dream dictionary: scapegoat dream meanings
To dream that you or others are being exorcised, has deep meaning and stands as an omen for your initiative to regain control in your business or personal relationship. You are taking steps to refresh the direction of your objectives. Alternatively, in the dream to see an attempt to drive out an evil spirit from a person or place can mean, that you may not be taking responsibility for your actions. Are you looking for a scapegoat?