And every spirit that confesses not that Jesus Christ is come in the flesh is not of God: and this is that spirit of antichrist, of which you have heard that it should come; and even now already is it in the world.
All Commentaries on 1 John 4:3 Go To 1 John 4
George Leo Haydock
AD 1849
That dissolveth Jesus, viz. either by denying his humanity or his divinity. (Challoner)
This is antichrist; i.e. such is the spirit of antichrist, of whom you have heard that he cometh, or is to come in the latter times.
And he is now already in the world, not the chief and great antichrist, but his precursors, in whom he may be said to come. (Witham)
And he is now already in the world. Not in his person, but in his spirit and in his precursors. (Challoner)