If we say that we have not sinned, we make him a liar, and his word is not in us.

He that saith, I know him, and keepeth not his commandments, is a liar, and in him the truth is not.

Who is the liar, but he that denieth that Jesus is the Messiah? This man is the antichrist, who denieth the Father and the Son.

If any person say, I love God, yet hateth his brother, he is a liar; for he who loveth not his brother whom he hath seen, how can he love the God whom he hath not seen?

He that believeth on the Son of God, hath the testimony in himself; he that believeth not God, hath made him a liar, because he hath not believed on the testimony which God testified of his Son.