22 Who is the liar but he who denies that Jesus is the Christ? He is the antichrist, who denies the Father and the Son.
1 John 2:22 Cross References - RKJNT
John 8:44
44 You are of your father the devil, and you want to do the desires of your father. He was a murderer from the beginning, and does not stand in the truth, because there is no truth in him. When he speaks a lie, he speaks from his own nature: for he is a liar, and the father of lies.
1 Corinthians 12:2-3
1 John 1:6
6 If we say that we have fellowship with him, yet walk in darkness, we lie, and do not practice the truth:
1 John 2:4
4 He who says, I know him, and does not keep his commandments, is a liar, and the truth is not in him.
1 John 2:18
18 Little children, it is the last hour: and as you have heard that the antichrist shall come, even now there are many antichrists; by this we know that it is the last hour.
1 John 2:23
23 Whoever denies the Son, does not have the Father: he who acknowledges the Son has the Father also.
1 John 4:3
3 And every spirit that does not confess Jesus, is not of God: this is the spirit of antichrist, of which you have heard that it was coming; and now is already in the world.
1 John 4:20
20 If a man says, I love God, and hates his brother, he is a liar: for he who does not love his brother whom he has seen cannot love God whom he has not seen.
2 John 1:7
7 For many deceivers have gone out into the world, who do not confess that Jesus Christ has come in the flesh. Such a one is a deceiver and an antichrist.
Jude 1:4
4 For certain men have crept in secretly, who were long ago ordained for this condemnation; ungodly men, turning the grace of our God into licentiousness, and denying our only Master and Lord, Jesus Christ.
Revelation 3:9
9 Behold, I will make those of the synagogue of Satan, who say they are Jews, and are not, but lie; behold, I will make them to come and bow down before your feet, and to know that I have loved you.