The best description of antichrist I've found is in the profile of Judas.. everyone.. his disciples included.. thought that Judas was one of them..
Most, when they read of Judas, only see Judas. Scripture does not see that way. Here is scriptures view of Judas:
Luke 22:3
Then
entered Satan into Judas surnamed Iscariot, being of the number of the twelve.
John 13:27
And after the sop
Satan entered into him. Then said Jesus unto him, That thou doest, do quickly.
There is no point in seeing only Judas. When Jesus said 'one of you is a devil' and we look at the above, why would we see Judas as 'the devil' when the devil himself is staring us in the face? It makes no sense to see that way.
Satan is "in man." Therefore Satan is THE MAN OF SIN, the son of perdition, who AGAIN makes his appearance in Paul's writings to the Thessalonians.
Satan is "in man." As are his minions. This is "how" scripture sees. Scripture sees, for example, an entire LEGION of devils in a single man. Are they the 'same' entities, that man, and the devils? Assuredly not. Jesus came to SAVE that one man, and condemn that man's adversaries in his flesh.
The exact same sight of Judas can also be seen with Peter as an open example of Satan IN Peter, speaking from Peter's own lips to Jesus' Face. When Jesus addressed Satan in Peter was Jesus then condeming Peter? Assuredly NOT.
Are we to think then that Peter's denial, thrice, of Jesus there was only Peter involved? Again, not.
Jesus KNOWS what Satan does, in ADVANCE. There is no such animal as "free agency" in the scriptures. There is man and there are devils. These parties are intertwined, but they are not the same parties.
This is shown by many many scriptures. For example, the "god of this world" (Satan, for those who don't know who the "god of this world" is) is shown to be upon the entirety of unbelievers, here:
2 Corinthians 4:
4 In whom
the god of this world hath blinded the minds of
them which believe not, lest the light of the glorious gospel of Christ, who is the image of God, should shine unto them.
What do we see in the above example? We SHOULD be able to see "the god of this world" and "THEM." Two entirely different parties.
This exact same condition as above is shown to be OUR condition prior to belief as well, here:
Ephesians 2:
2 Wherein in time past
ye walked according to the course of this world,
according to the prince of the power of the air, the spirit that now worketh in the children
of disobedience:
Do we see "just us" in the above? No. We see ourselves the same as 2 Cor. 4:4. Ourselves, blinded, by a disobedient spirit that is NOT US.
Disobedience IS an adverse spirit. A spirit that is against and opposed to Christ.
No man can believe unless God Himself, in Christ INTERVENES to remove that spirit, blinding them.
And conversely, God can and DOES also "harden" that spirit, arousing it to RESIST. Romans 7:13, 1 Cor. 15:56. The "fact" that Gods Words are sown on the earth CAUSES the "god of this world" to be "empowered" and to "resist" God in Christ.
Mark 4:15.
Anyone reading the scriptures who can not "account" for BOTH parties is, themselves, presently partly or completely blinded by that same working spirit of disobedience.
When John spoke of the anti-Christ what was John's WARNING?
2 John 1:
7 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.
8
Look to yourselves, that we lose not those things which we have wrought, but that we receive a full reward.
John is NOT warning us about "some other guy."
There is ample reason for John's WARNING, because this is what happens, where Gods Words are sown, and it is a hard line spiritual FACT:
Mark 4:
15 And these are they by the way side,
where the word is sown; but when they have heard,
Satan cometh immediately, and taketh away the word that was sown
in their hearts.
This example is shown by Peter, it is shown by Judas, it is shown by Paul himself, in his own flesh. 2 Cor. 12:7.
We ourselves are called to ARMOR UP, precisely because we do wrestle and battle with WHO? Uh, yeah, THE DEVIL. Eph. 6:11-12.
Spiritually blinded people have no such battles. They are simply blinded CAPTIVES, of an adverse spiritual entity that is not them.