1 John 2:22
Who is a liar but he that denieth that Jesus is the Christ? He is antichrist, that denieth the Father and the Son.
Cross-references
In 1 John 2:4, the one who claims to know God but disobeys is a liar — same epistle's theme of lying about faith. Both identify liars.
In 1 John 2:18, many antichrists have already come — introducing the category that verse 22 defines as denying Christ.
In 1 John 2:23, denial of the Son means no Father — directly expands on verse 22's statement about denying both. Consecutive argument.
In 1 John 4:3, every spirit that does not acknowledge Jesus is the antichrist — identical definition to the liar in 2:22. Very close.
In 1 John 5:1, believing Jesus is the Christ brings new birth — the positive alternative to the denial that reveals the antichrist.
In 1 John 1:6, claiming fellowship while walking in darkness is lying — parallels the denial of Jesus as lying. Both expose false claims.
In 1 John 4:20, hating a brother while claiming to love God makes one a liar — similar to the liar in 2:22 who denies Jesus.
In John 8:44, the devil is the father of lies — the liar in 1 John 2:22 who denies Jesus shares that satanic origin. Strong link.
In 1 Corinthians 12:3, confessing Jesus as Lord is the Spirit's work — contrasting the denial that marks the antichrist here.
In 2 John 1:7, the same 'antichrist' is defined by denying Jesus' incarnation — reinforcing the denial of Christ as its mark.
In John 8:55, Jesus calls those who claim to know God while rejecting him liars — paralleling how denying the Son makes one a liar about the Father.
In 2 Timothy 2:12, denying Christ results in being denied by him — adding the consequence to the denial described here.
In 2 John 1:9, not abiding in Christ's teaching means losing both Father and Son — the same outcome as denying the Son here.
Revelation 3:8 commends the church for not denying Christ's name, contrasting the denial that defines the antichrist.
In Revelation 3:9, those claiming to be Jews but lying are from Satan's synagogue — parallels false claimants in 1 John 2:22.