Verse Comparison: 1 John 4:3
American Standard Version
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.
Amplified® Bible
And every spirit which does not acknowledge {and} confess {that} Jesus {Christ has come in the flesh} [but would annul, destroy, sever, disunite Him] is not of God [does not proceed from Him]. This [nonconfession] is the [spirit] of the antichrist, [of] which you heard that it was coming, and now it is already in the world.
Darby English Version
and every spirit which does not confess Jesus Christ come in flesh is not of God: and this is that [power] of the antichrist, [of] which ye have heard that it comes, and now it is already in the world.
International Standard Version
But every spirit who does not acknowledge Jesus is not from God. This is the spirit of the antichrist. You have heard that he is coming, and now he is already in the world.
King James Version
And every spirit that confesseth not that Jesus Christ is come in the flesh is not of God: and this is that spirit of antichrist, whereof ye have heard that it should come; and even now already is it in the world.
Young's Literal Translation
and every spirit that doth not confess Jesus Christ in the flesh having come, of God it is not; and this is that of the antichrist, which ye heard that it doth come, and now in the world it is already.