“For many deceivers are entered into the world, who confess not that Jesus Christ is come in the flesh. This is a deceiver and an antichrist.”
King James Version (KJV)
1:7 Carefully keep what ye have heard from the beginning, for many seducers are entered into the world, who confess not Jesus Christ that came in the flesh - Who disbelieve either his prophetic, or priestly, or kingly office. Whosoever does this is the seducer - From God. And the antichrist - Fighting against Christ.
2Jo 1:7 For many deceivers are entered into the world. See notes on 1Jo 2:18 2:22-24 4:1. An antichrist. Opposed to Christ.