1 John 2:22

Who is the liar but he that denieth that Jesus is the Christ? This is the antichrist, even he that denieth the Father and the Son.

2 John 1:7

For many deceivers are gone forth into the world, even they that confess not that Jesus Christ cometh in the flesh. This is the deceiver and the antichrist.

1 John 4:3

and every spirit that confesseth not Jesus is not of God: and this is the'spirit of the antichrist, whereof ye have heard that it cometh; and now it is in the world already.

1 John 2:18

Little children, it is the last hour: and as ye heard that antichrist cometh, even now have there arisen many antichrists; whereby we know that it is the last hour.

John 8:44

Ye are of your father the devil, and the lusts of your father it is your will to do. He was a murderer from the beginning, and standeth not in the truth, because there is no truth in him. When he speaketh a lie, he speaketh of his own: for he is a liar, and the father thereof.

1 Corinthians 12:2-3

Ye know that when ye were Gentiles ye were led away unto those dumb idols, howsoever ye might led.

1 John 1:6

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

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 2:23

Whosoever denieth the Son, the same hath not the Father: he that confesseth the Son hath the Father also.

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, cannot love God whom he hath not seen.

Jude 1:4

For there are certain men crept in privily, even they who were of old written of beforehand unto this condemnation, ungodly men, turning the grace of our God into lasciviousness, and denying our only Master and Lord, Jesus Christ.

Revelation 3:9

Behold, I give of the synagogue of Satan, of them that say they are Jews, and they are not, but do lie; behold, I will make them to come and worship before thy feet, and to know that I have loved thee.

Treasury of Scripture Knowledge

Summary

Who is a liar but he that denieth that Jesus is the Christ? He is antichrist, that denieth the Father and the Son.

He is

Bible References

Who

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 1:6
If we say that we have fellowship with him and walk in the darkness, we lie, and do not the truth:
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, cannot love God whom he hath not seen.
John 8:44
Ye are of your father the devil, and the lusts of your father it is your will to do. He was a murderer from the beginning, and standeth not in the truth, because there is no truth in him. When he speaketh a lie, he speaketh of his own: for he is a liar, and the father thereof.
Revelation 3:9
Behold, I give of the synagogue of Satan, of them that say they are Jews, and they are not, but do lie; behold, I will make them to come and worship before thy feet, and to know that I have loved thee.

He that

1 John 2:23
Whosoever denieth the Son, the same hath not the Father: he that confesseth the Son hath the Father also.
1 John 4:3
and every spirit that confesseth not Jesus is not of God: and this is the'spirit of the antichrist, whereof ye have heard that it cometh; and now it is in the world already.
1 Corinthians 12:2
Ye know that when ye were Gentiles ye were led away unto those dumb idols, howsoever ye might led.
2 John 1:7
For many deceivers are gone forth into the world, even they that confess not that Jesus Christ cometh in the flesh. This is the deceiver and the antichrist.
Jude 1:4
For there are certain men crept in privily, even they who were of old written of beforehand unto this condemnation, ungodly men, turning the grace of our God into lasciviousness, and denying our only Master and Lord, Jesus Christ.

He is

1 John 2:18
Little children, it is the last hour: and as ye heard that antichrist cometh, even now have there arisen many antichrists; whereby we know that it is the last hour.

American Standard Version Public Domain