My little children, I write these things to you so that you may not sin. If anyone sins, we have a Counselor{Greek Parakleton: Counselor, Helper, Intercessor, Advocate, and Comfortor.} with the Father, Jesus Christ, the righteous.
 (b)By proving that he had a right to do the deed - as, if he is charged with murder, he may admit the fact of the killing, but may show that it was in self-defense.