2 John 1:7

For many deceivers are entered into the world, who confess not that Jesus Christ is come in the flesh. This is a deceiver and an antichrist.

1 John 4:3

And every spirit that confesseth not that Jesus Christ is come in the flesh is not of God: and this is that {spirit} of antichrist, whereof ye have heard that it should come; and even now already is it in the world.

1 John 2:18

Little children, it is the last time: and as ye have heard that antichrist shall come, even now are there many antichrists; whereby we know that it is the last time.

Jude 1:4

For there are certain men crept in unawares, who were before of old ordained to this condemnation, ungodly men, turning the grace of our God into lasciviousness and denying the only Lord God, and our Lord Jesus Christ.

1 John 2:23

Whosoever denieth the Son, the same hath not the Father: {but) he that acknowledgeth the Son hath the Father also}.

1 John 2:4

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

1 John 4:20

If a man say, I love God, and hateth his brother, he is a liar: for he that loveth not his brother whom he hath seen, how can he love God whom he hath not seen?

1 John 1:6

If we say that we have fellowship with him, and walk in darkness, we lie, and do not the truth: