1 John 2:22 in the World English Bible
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.
Context
21 I have not written unto you because ye know not the truth, but because ye know it, and that no lie is of the truth.
22 Who is a liar but he that denieth that Jesus is the Christ? He is antichrist, that denieth the Father and the Son.
23 Whosoever denieth the Son, the same hath not the Father: but he that acknowledgeth the Son hath the Father also.