Demons and Eternal Torment

Torment, in judgment, of any of God's creatures is limited in duration. It is limited because torment and judgment are not God's intended final goal for any of His creatures. They are a MEANS to the true goal: the reconciliation of all by the death and resurrection of Jesus. Your pastor may not be teaching you this great truth, but God does through His Scriptures. He even uses demons at times to reveal truth.