1 John 2:4; 1 John 2:22

1 John 2:4

4 He that saith that he knoweth God, and keepeth not his commandments, is a liar, and truth is not in him.

1 John 2:22

22 Who is a liar, but this that denieth that Jesus is not Christ? This is antichrist, that denieth the Father, and the Son.