My Father is God; I declare unto you his mind and will; no uncertain things, but what I have seen with him, that is, what I certainly know to be his will. You declare by your actions who is your father; and as I do my Father's will, and what he teacheth me to do, so you do the works which the devil, who is your father, 1 Thessalonians 8:44, prompts you to do.
Related Commentaries of John 8:38
John 8:38
38 I speak that which I have seen with my Father: and ye do that which ye have seen with your father.