New Revised Standard Version
Who is the liar but the one who denies that Jesus is the Christ? This is the antichrist, the one who denies the Father and the Son.

Contemporary English Version
And a liar is anyone who says Jesus isn't truly Christ. Anyone who says this is an enemy of Christ and rejects both the Father and the Son.

New American Bible
Who is the liar? Whoever denies that Jesus is the Christ. Whoever denies the Father and the Son, this is the antichrist.

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

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

Who.

1 John 2:4 He who saith that he knoweth him and keepeth not his commandments is a liar: and the truth is not in him.

1 John 1:6 If we say that we have fellowship with him and walk in darkness, we lie and do not the truth.

1 John 4:20 If any man say: I love God, and hateth his brother; he is a liar. For he that loveth not his brother whom he seeth, how can he love God whom he seeth not?

John 8:44 You are of your father the devil: and the desires of your father you will do. He was a murderer from the beginning: and he stood not in the truth, because truth is not 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 will bring of the synagogue of Satan, who say they are Jews and are not, but do lie. Behold, I will make them to come and adore before thy feet. And they shall 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 dissolveth Jesus is not of God. And this is Antichrist, of whom you have heard that he cometh: and he is now already in the world.

1 Corinthians 12:2,3 You know that when you were heathens, you went to dumb idols, according as you were led. . . .

2 John 1:7 For many seducers are gone out into the world who confess not that Jesus Christ is come in the flesh. This is a seducer and an antichrist.

Jude 1:4 For certain men are secretly entered in (who were written of long ago unto this judgment), ungodly men, turning the grace of our Lord God into riotousness and denying the only sovereign Ruler and our Lord Jesus Christ.

He is.

1 John 2:18 Little children, it is the last hour: and as you have heard that Antichrist cometh, even now there are become many Antichrists: whereby we know that it is the last hour.