1 John 2:4; 1 John 2:22

1 John 2:4

4 He who saith that he knoweth him and keepeth not his commandments is a liar: and the truth is not in him.

1 John 2:22

22 Who is a liar, but he who denieth that Jesus is the Christ? This is Antichrist, who denieth the Father and the Son.