1John 2:18

(NIV)
Dear children, this is the last hour; and as you have heard that the antichrist is coming, even now many antichrists have come. This is how we know it is the last hour.
(ESV)
Children it is the last hour, and as you have heard that antichrist is coming, so now many antichrists have come. Therefore we know that it is the last hour.

1John 2:22

(NIV)
Who is the liar? It is whoever denies that Jesus is the Christ. Such a person is the antichrist – denying the Father and the Son.
(ESV)
Who is the liar but he who denies that Jesus is the Christ? This is the antichrist, he who denies the Father and the Son.

1John 4:3

(NIV)
but every spirit that does not acknowledge Jesus is not from God. This is the spirit of the antichrist, which you have heard is coming and even now is already in the world.

(ESV)
and every spirit that does not confess Jesus is not from God. This is the spirit of the antichrist, which you heard was coming and now is in the world already.

2John 1:7

(NIV)
I say this because many deceivers, who do not acknowledge Jesus Christ as coming in the flesh, have gone out into the world. Any such person is the deceiver and the antichrist.
(ESV)
For many deceivers have gone out into the world those who do not confess the coming of Jesus Christ in the flesh. Such a one is the deceiver and the antichrist.
Copyright information for NIV, ESV