A good man out of the good treasure of his heart brings forth that which is good; and an evil man out of the evil treasure of his heart brings forth that which is evil. For out of the abundance of the heart his mouth speaks.
You are of your father the devil, and the lusts of your father you desire to do. He was a murderer from the beginning, and has not stood in the truth, because there is no truth in him. When he tells a lie, he speaks from his own resources, for he is a liar, and the father of lies.
By this the children of God and the children of the devil are manifest: Everyone who does not practice righteousness is not of God, nor is he who does not love his brother.