Who is a liar but he who denies that Jesus is the Christ? He is antichrist who denies the Father and the Son.
Whoever denies the Son does not have the Father either; he who acknowledges the Son has the Father also.
Therefore let that abide in you which you heard from the beginning. If what you heard from the beginning abides in you, you also will abide in the Son and in the Father.1 John 2:22-24