Who is the liar but he who denies that Jesus is the Christ? This is the Antichrist, he who denies the Father and the Son.

 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. 