Brothers, I write no new commandment to you, but an old commandment which you had from the beginning. The old commandment is the word which you heard from the beginning.

 2:22-23 Who is the liar but the man who denies that Jesus is the Anointed One of God? Antichrist is he who denies the Father and the Son. Anyone who denies the Son does not even have the Father; and everyone who acknowledges the Son has the Father also. 