Who Is The Antichrist
The short answer
The word "antichrist" appears in the Bible only in the letters of John — and what John says may surprise readers who come looking for a single sinister figure. In 1 John 2:18, he writes that "the Antichrist is coming," but adds that "many antichrists have arisen" already. In other words, John acknowledges the expectation of a future opponent of Christ, but he is far more interested in something happening right in front of his readers: teachers who had once belonged to the church, had left it, and were now spreading a distorted picture of Jesus.
For John, the mark of the antichrist is not a name, a date, or a political identity. It is denial — specifically, the denial that Jesus is the Christ come in the flesh (1 John 4:2-3). Anyone who spreads that denial carries what John calls "the spirit of the antichrist." This moves the question from prediction to discernment. Instead of asking who the antichrist will turn out to be, John asks his readers to test what they are hearing now.
That reframing matters. John does not dismiss the future; he simply refuses to let speculation about it distract from present danger. The threat to his community was not a distant tyrant but familiar voices — former insiders whose teaching sounded plausible precisely because it came from people they knew. The antichrist, in John's letters, is less a puzzle to decode than a deception to detect: any spirit, teaching, or influence that pulls people away from the truth about Jesus. The question "who is the antichrist?" gets its most practical biblical answer here — not a face to identify, but a spirit to recognize.
What scholars say
Marshall addresses the question head-on, showing that John neither denies a future antichrist nor fixates on him, but focuses on false teachers already present who carry the antichrist's spirit. Barclay then describes what that spirit looks like in practice: a struggle for the human mind, where ideas repeated often enough come to be accepted as true.
“It seems, therefore, that he regarded the false teachers of his day as being possessed by the spirit of the antichrist, whose own coming still lay in the future. The basis of his teaching is the prophecy of the coming of several opponents of Christ, and he relates this to the coming of the antichrist. He has not demythologized the figure of the antichrist, nor does he deny the future coming of the antichrist, but he is much more concerned with the present fact of false teachers in the church who have the spirit of the antichrist. Now he tells his readers that they are people who have gone out from their midst. This can only mean that they had once been members or adherents of the church, but had now departed from it, presumably to set up their own group.”
“The spirit of antichrist was struggling with the Spirit of God for the possession of human minds. What makes this so significant is that we can see exactly this process at work today. Some people have made a science out of the indoctrination of the human mind. We see them take an idea and repeat it and repeat it until it settles into the minds of others who begin to accept it as true simply because they have heard it so often. This is easier today than it ever was with so many means of mass communication – books, newspapers, radio, television and the vast resources of modern advertising. A skilled propagandist can take an idea and infiltrate it into people’s minds until, unknown to themselves, they are indoctrinated with it.”
What it means for you
It is easy to treat the antichrist as material for end-times theories — scanning headlines for a candidate. John points us somewhere less dramatic and more demanding: our own ears. Ideas gain power through repetition; hear something often enough, from enough sources, and it starts to feel true whether or not it is. That makes discernment a daily practice, not an occasional alarm.
A useful question to carry: what am I absorbing simply because I keep hearing it? John's test is not suspicion of everything, but a settled clarity about Jesus. When you know the genuine article well, counterfeits become easier to spot — wherever they come from.
In context
First John was written to a community shaken by a split. Some members had left, and their departure was tied to teaching that denied core claims about Jesus. John writes to reassure those who remained and to give them tools for telling truth from error. His two mentions of the antichrist (1 John 2:18-22 and 4:1-3, echoed in 2 John 7) sit inside this pastoral crisis. The language of "last hour" and "antichrist" frames the departure of the false teachers as a sign of the times — and a call to hold fast to what they heard from the beginning.