1 John 2:4; 1 John 2:22

1 John 2:4

4 If anyone says, “I know Him,” but does not keep His commandments, he is a liar, and the truth is not in him.

1 John 2:22

22 Who is the liar, if it is not the one who denies that Jesus is the Christ? This is the antichrist, who denies the Father and the Son.