Whoever denies the Son, the same doesn't have the Father. He who confesses the Son has the Father also.

 2:15-17 Do not love the world nor the things in the world. If anyone loves the world, the love of the Father is not in him. For everything that is in the world--the flesh's desire, the eye's desire, life's empty pride--does not come from the Father but comes from the world. And the world is passing away, and so is its desire; but he who does God's will abides for ever. 