Whoever denies the Son, the same doesn't have the Father. He who confesses the Son has the Father also.
but he that acknowledgeth the Son hath the Father also: The contrasting statements of this verse are meaningful indeed. Deny Jesus and lose God; confess Jesus and acquire the Father. Barclay articulates the thought of this verse so well: "We may say that there are three New Testament confessions of Jesus; there is the confession that Jesus is the Son of God (Matthew 16:16; John 9:35-38); there is the confession that Jesus is Lord (Philippians 2:11); and there is the confession that Jesus is Messiah (1 John 2:22); and the essence of every one of them is the affirmation that Jesus stands in an absolutely unique relationship to God; and to deny that relationship is to deny the certainty that everything that Jesus said about God is true. The whole Christian faith depends on the unique relationship of Jesus to God. John is, therefore, right; the man who denies the Son has lost the Father too" (80-81).