“Go home to your family and tell them how much the Lord has done for you,…” Mark 5:19. The strongest argument for the Gospel of Christ is the personal testimony of someone whose life has been changed by it.  You may not be able to present a careful, logical case for accepting Christ, but that doesn’t really matter.  Just tell people about the difference He has made in your life.  Let them know that He who cast demons out still manifests His power in the hearts of those who trust Him.  Your transformed life, coupled with a simple testimony, is still the best argument for the truth of the Gospel.