and every spirit that does not confess Jesus is not from God. This is the spirit of the antichrist, which you have heard is coming and which is already in the world at this time.
3. And this is that spirit of Antichrist The Apostle added this, to render more detestable the impostures which lead us away from Christ. We have already said that the doctrine respecting the kingdom of Antichrist was well known; so that the faithful had been warned as to the future scattering of the Church, in order that they might exercise vigilance.
The apostle, having said that God's dwelling in and with us may be known by the Spirit that he hath given us, intimates that that Spirit may be discerned and distinguished from other spirits that appear in the world; and so here, I. He calls the disciples, to whom he writes, to caution and scrutiny about the spirits and spiritual professors that had now risen. 1.
Commenting on 1 John 4:1-3
And every spirit that confesseth not,.... The proper deity and sonship of Christ, his true and real humanity, and his Messiahship; or any of his offices, doctrines, and ordinances; or his satisfaction and righteousness; or that peace, pardon, justification, life, and salvation, are by him; all which are meant by what follows, that Jesus Christ is come in the flesh: this clause is left out...