1 John 1:10
1:10 If we say we have not sinned, we make him a liar and his word is not in us.
1 John 2:22
2:22 Who is the liar but the person who denies that Jesus is the Christ 1 ? This one is the antichrist: the person who denies the Father and the Son.
1 tn Or “the Messiah”