The fact is that a "minor exorcism" takes place in every Baptism and Confirmation ceremony when we renounce Satan and all his works and empty promises. This prayer service will be along those lines. I'm not saying that anyone involved in the redefinition of marriage is possessed by the devil, which, if that were the case, would require the remedy of a "Major Exorcism," but all of us are certainly subject to the devil's evil influences and in need of protection and deliverance from evil.