Whoever denies the Son, the same doesn't have the Father. He who confesses the Son has the Father also.
Now there are many Jewish people today who say, "Well, we just pray to God. We don't need Jesus." Well then, I don't know to which god they are praying to. Because the God, even of their own Old Testament, required that before they could come to Him they had to offer a sacrifice and get rid of the sins, by the animal sacrifice. "Oh well, I just come to God with my good works, and I just believe that God accepts me because of my good works and my sincerity." Well, your god may, but he is not the god who is revealed in the Bible, because He said your works are like filthy rags in His sight. He has no interest in your works. The just shall live by faith, and not faith in your works, but faith in His work.