[28] Who is the Antichrist and who are the Antichrists?

The short answer is Satan is the Antichrist and sons of the DAC or failed saints are the Antichrists. These are the saints that Satan either chose or whom God chose but then Satan corrupted and won over - see U70. They are have 2nd dead associated angels (Hell's angels). So they are all born again angelically but with 2nd dead angels.

Wheat cannot become weeds and weeds cannot become wheat. So sons of the JAC cannot becomes sons of the DAC and sons of the DAC cannot become sons of the JAC. But sons of the DAC can repent so as to join the 1AC. And sons of the JAC can be corrupted so as to fail their spirit baptism test. Hence Jesus said of Judas...

24 True, the Son of man is going away, just as it is written concerning him, but woe to that man through whom the Son of man is betrayed! It would have been finer for him if that man had not been born. (Matthew 26 NWT)

When a JAC fails his spirit baptism test he gets a 2nd dead angel for a period of time (no idea how long for). During this period he can be demonically possessed: Judas was so possessed by Satan before the last supper.

Satan's 2 Possessions of Judas

3 But Satan entered into Judas, the one called Iscariot, who was numbered among the 12;
4 and he went off and talked with the chief priests and [temple] captains about the effective way to betray him to them.
5 Well, they rejoiced and agreed to give him silver money. (Luke 22 NWT)

Then Satan left Judas. Poor old Judas had no idea what Satan did whilst he was possessed. So John says...

2 So, while the evening meal was going on, the Devil having already put it into the heart of Judas Iscariot, the son of Simon, to betray him (John 13 NWT)

Satan put into Judas' heart what he had already done whilst possessing him previously. Then Satan re-entered him after the meal during the last supper. Perhaps the grounds for re-entry were that Judas had to himself decide to do what Satan had already done whilst possessing him. So Judas was possessed twice.

26 Therefore Jesus answered: It is that one to whom I shall give the morsel that I dip. And so, having dipped the morsel, he took and gave it to Judas, the son of Simon Iscariot.
27 And after the morsel then Satan entered into the latter. Jesus, therefore, said to him: What you are doing get done more quickly. (John 13 NWT)

Judas did drink the first 3 cups of the last supper (the ARC, the FRC and the 1AC).

23 And taking a cup, he offered thanks and gave it to them, and they all drank out of it. (Mark 14 NWT)

Jesus could not knowingly permit a son of the DAC to drink his blood of the ARC. So Judas was not in the DAC. He was a failed JAC. Sure Jesus knew he was going to fail. But Judas must have had faith initially.

64 But there are some of you that do not believe. For from [the] beginning Jesus knew who were the ones not believing and who was the one that would betray him [who might have initially believed].
65 So he went on to say: This is why I have said to you, No one can come to me unless it is granted him by the Father.
66 Owing to this many of his disciples went off to the things behind and would no longer walk with him.
67 Therefore Jesus said to the 12: You do not want to go also, do you?
68 Simon Peter answered him: Lord, whom shall we go away to? You have sayings of everlasting life;
69 and we have believed and come to know that you are the Holy One of God.
70 Jesus answered them: I chose you 12, did I not? Yet one of you is a slanderer [diaboloj] [is now a slanderer. May not have been at choosing].
71 He was, in fact, speaking of Judas [the son] of Simon Iscariot; for this one was going to betray him, although one of the 12. (John 6 NWT)

DAC Antichrists (weeds)

18 Young children [those who have been born again, not young children physically, but young children angelically], it is the last hour [the hour of the test in the day of the church or the day of the presence], and, just as you have heard that an antichrist is coming [Satan is coming down to the earth], even now there have come to be many antichrists; from which fact we gain the knowledge that it is the last hour.
19 They went out from us, but they were not of our sort; for if they had been of our sort, they would have remained with us. But [they went out] that it might be shown up that not all are of our sort [Antichrists are therefore not rotten saints who leave the true church but are weeds who were never wheat. They are sons not of Jacob but of Satan, planted in the true church. They are not only from the church however for sons of Jacob must be sons of Isaac (in the true church), but the sons of the DAC are not sons of Jacob].
20 And you have an anointing from the holy one; all of you have knowledge.
21 I write you, not because you do not know the truth, but because you know it, and because no lie originates with the truth [No son of the DAC was born again in a true church. But some of them, born into the DAC outside the true church, come into the true church to corrupt it]
22 Who is the liar if it is not the one that denies that Jesus is the Christ? This is the antichrist, the one that denies the Father and the Son [Satan is this one, he denies worship to Jesus and Jehovah and is plainly THE antichrist. But just as Jesus has a wife in the form of a congregation of angelic humans by the JAC, so Satan has a wife in the form of a congregation of angelic humans by the DAC. This is rather like the Man and mankind. We have the Antichrist and many antichrists. The wife of Satan denies Jesus and his covenant tree son Jacob. If you deny the ARC and the JAC then you are not going to be sealed and are not a holy saint. You are not a son of God. The sons of the DAC confess that covenant instead which perhaps should be called the ACC, the AntiChrist Covenant. They are weeds. They are of a different sort to wheat]

The antichrist, Satan, denies worship to Jehovah and Jesus. His sons, the antichrists, the sons of the DAC, being in his image, also deny the Father and the Son in the form of Jesus and Jacob in the covenant tree of the ARC. The family trait is to deny both the Father and the Son. 

23 Everyone that denies the Son does not have the Father either [if you deny/break/abandon your spirit baptism you are not going to be sealed into the ARC]. He that confesses the Son has the Father also [if you keep/confess your spirit baptism you will eventually be sealed].
24 As for you, let that which you have heard from [the] beginning [of Christianity, the gospels, the equivalent of the teachings of Moses] remain in you. If that which you have heard from [the] beginning remains/abides in you, you will also remain/abide in the Son and in the Father [Remain in Jacob and abide in Jesus. Everyone who enters into the ARC remains in it, for it is a sealing covenant] .
15 Furthermore, this is the promised thing that he himself promised us [in the message you heard from the beginning of Christianity, his ministry as recorded in the Gospels], the life everlasting [the blessing of the ARC].
26 These things I write you about those who are trying to mislead you.
27 And as for you, the anointing that you received from him remains in you [you are keeping your sprit baptism. Humans who have no angelic bodies cannot be antichrists, since Christ is an angel. They are an irrelevance in this regard], and you do not need anyone to be teaching you; but, as the anointing from him is teaching you about all things [therefore the anointing is by holy spirit which teaches us through our associated angel through our subconscious], and is true and is no lie, and just as it has taught you, remain in him.
28 So now, little children [all ye saints], remain in him [as his wife through the 1NC], that when he is made manifest we may have freeness of speech and not be shamed away from him at his presence.
29 If you know that he is righteous, you gain the knowledge that everyone [of ye young and little children of verses 18 and 28, i.e. those who have been born again] who practices righteousness [under the baptism test] has been born [out] of him [into the ARC. He therefore becomes your eternal father] (1John2).

The point here is that plenty of unsanctified water baptized brothers practice righteousness. Righteousness is not the exclusive preserve of the saints. But among the saints, those who practice righteousness become sons of the ARC. The scripture does not say that those who do not practice righteousness are sons of the DAC/ACC. This is because some unrighteous behaving saints are sons of the DAC, weeds, and others are rotten sons of the JAC, corrupted wheat.

Confess Jesus as being here through the descended 1NCs of the 3rd Holy Spirit, the flesh of his wife

6 And this is what love means, that we go on walking according to his commandments. This is the commandment, just as you people have heard from [the] beginning, that you should go on walking in it.
7 For many deceivers have gone forth into the world [abandoning the commandments above and leaving the church], persons not confessing Jesus Christ coming in the flesh [The 1NC saints descending as humans. The JWs believe that Jesus has already come invisibly and angelically in Kingdom power. They do not confess him as coming in the flesh in the last hour]. This is the deceiver and the antichrist [The dragon is tries to hide the 2nd presence and the 3rd presence of Jesus' flesh].
8 Look out for yourselves, that you do not lose the things we have worked to produce, but that you may obtain a full reward [it is possible to fail your spirit baptism test yet pass the faith baptism test and become a citizen in the Kingdom without an angel. It is also possible to fail your baptism in such a way as to lose everything. That is the antichrist and the one who has sinned against the holy spirit which means he has discounted an obvious physical proof of the kingdom and therefore lost the opportunity to be saved by faith].
9 Everyone going before/previously [into the first church of a presence] and not remaining in the teaching [new updated and latest. Churches stop researching and teaching new doctrines but Jesus does not. The church stops listening to Christ as the tutor. Loses Jesus as a tutor] of the Christ does not have God [referring to the status not the person because there are actually two persons with this status. It could have said does not have the father for example. If you stop listening to the new understandings continually being taught by the Christ, i.e. if you remain in a church with no new understandings, then you lose not only the Christ but also God. In this case you lose every reward.]. He that does remain in this teaching [the teaching of the Christ] both the Father and the Son has [as a God - This is Gnostic. It could have said: Has the Father and the teaching of the Christ. It could have said: Has the Father and the Son. But it says: Has both the Father and the Son. Family relationship - Jesus has the name above any other and is the only begotten son of God who is a God. He that remains in the teaching of the Christ will eventually discover that the Christ is a God like Jehovah and so he will have both the father and the son as Gods to be worshipped. This being a teaching of the second church in each presence. Jesus is the son in the sense that he the one son of God who is a God, he is the only begotten God. He is the only divine son of a divine father and was at the time that John wrote this letter].
10 If anyone comes to you [in evangelism not socially for a cup of tea or to read the gas meter] and does not bring this teaching [namely that both the Father and the Son are Gods], do not receive him into your home and do not say a greeting-as-a-Christian-brother to him [deny him any religious status. But you can say hello how are you and would you like to talk about the football. Or you can evangelise to them but not the other way around] [The true church of the last hour is defined by its knowledge and worship of both the father and the son. All other churches worship 1 or 3 Gods].
11 For he that says a greeting to him is a sharer in his wicked works (2John)

So do not receive any evangelist (coming as an evangelist to you) into your home unless he confesses two Gods, the Father (Jehovah) and the son (Jesus). If he confesses only one God, then do not let him in. If he confesses a trinity of Gods then do not let him in as an evangelist to you. If he confesses the wrong number of Gods, i.e. is a Catholic or a Born Again or a JW or a Mormon etc. and he wants to come to watch the football - fine!

Today, those is the two true churches are out of God, born again non adamically

1 Beloved ones, do not put faith in/believe every spirit, but examine the spirits to see if they are out of/from God, because many false prophets have gone forth into the world.
2 you [shall] know the spirit of God by this: Every spirit that confesses Jesus Christ as having come in the flesh is out of/from God [everyone in the last hour who confesses that the 1NC Kings have descended is out of God, non adamic, in the true church and therefore born again from God not from Adam. All in the last true church are both non adamic and confess two Gods. But also those in the 1AC are constructively out of God since there are being tested to be non adamic Abrahamic],
3 And every spirit that does not confess Jesus [as having descended in the flesh of his wife, as being here in the last hour], is not out of/from God [still adamic and therefore not in the true church]. And this is the [spirit] of the antichrist which you have heard is coming, and now it is already in the world.
4 you are out of/from God, little children [born again as angels in the literal meaning. Born again non adamically or constructively non adamically by being in the 1AC, in the final meaning. All the sons of the 1AC must become non adamic Abrahamic before the flood. since the flood kills Adam] and you have conquered them [the antichrists], because the [one] in you is greater than the [one] in the world.
5 They are out of/from the world; due to this speak out of/from the world and the world listens to them.
6 We are out of/from God. The one knowing the God listens to us. [The one] who is not out of the God does not listen to us. From this we know the spirit of the truth and the spirit of the deceit [a specific deceit denying that Jesus is coming or has come in the flesh] (1John4).

21 Accordingly, when he caught sight of him, Peter said to Jesus: Lord, what will this [man do]?
22 Jesus said to him: If it is my will for him to remain until I come [in the flesh! Hence John survived until the last hour when this occurred], of what concern is that to you? You continue following me (John 21).

The way to understand this is to realise that the messiah must come in the flesh of his wife to pick up his church, their kids at the manifestation after the presence. If you deny this messianic finale, you deny that Jesus is the Christ, for that is what the Christ must do. So anyone who says that Jesus is the Christ but denies that he will come in the flesh of his wife to pick up his children, the church of Abraham, is a liar. One must consider both 1 John 4 which shows that we confess Jesus as having come in the flesh, as well as 2 John 7 which shows that we confess Jesus as coming again in the flesh. Of course we must also confess that Jesus is the Christ, but that is just words.

So in summary those representing Jesus in the last hour will:

1 Confess two Gods, Jehovah and Jesus Christ
2. Confess the descended 3rd Holy spirit as being present in the flesh on earth
3. Confess that they are non adamic if in the true church and constructively non adamic if they have not yet joined the true church

Today, contrary to the ludicrously ill informed internet speculation by bible belt Christians, some of whom believe that HRH Prince Charles is the antichrist - doh! antichrists are still anointed Christians who deny the son, their immediate spirit covenant mediator (Jesus, Apollos of Zilpah or Gordon) and the father (Jehovah, Jacob or Jacob), who mediated their sainthood. 

The 3 parallel accounts of the dove descending on Jesus and God speaking

16 After being baptized Jesus immediately came up from the water, and, look! the heavens were opened up, and he saw descending like a dove God's spirit coming upon him.
Look! Also, there was a voice from the heavens that said: This is the Son of me, the beloved, in whom I have delighted [or whom I have approved] (Matthew 3).

10 And immediately on coming up out of the water he saw the heavens being parted, and, like a dove, the spirit coming down upon him.
11 And a voice came out of the heavens: You are the Son of me, the beloved. In you I have delighted [or I have approved you] (Mark 1).

21 Now when all the people were baptized, Jesus also was baptized and, as he was praying, the heaven was opened up
and the holy spirit in bodily shape as/like a dove came down upon him, and a voice came out of heaven: You are the Son of me, the beloved. In you I have delighted [or I have approved you] (Luke 3).

In the literal meaning, all three are Jesus and the holy spirit corporeally as/like a dove represents the angelic possession by Michael of the human body of Jesus.

In the first word symbolic thread the three sons are Paul, Russell and Ritchie, the other 3 cornerstones of the temple of all Christianity, the 3 further Elijah's after the chief cornerstone of John, the baptist who was rejected by Herod Antipas the son of the Herod the Great, the builder of the restored 2nd temple were Jesus taught .

The son of Matthew is Ritchie since God is speaking to everyone when he says: This is my son, whereas he is speaking to the son himself when he says: You are my son in Mark and Luke. 
The son of Luke is Paul because for Paul and Ritchie the heavens were opened up, but for Russell, the second part of Jesus' wife, the heavens were parted, just as the temple curtain was torn in two. So Russell is the son of Mark.

In the second word symbolic thread, the beloved of Matthew are those sanctified who enter TCC4, the sons of the 2NC (kings and lords). The beloved of Mark are the second presence 1NC saints in TCC3. The beloved of Luke are the sanctified who enter TCC2, the sons of the ELC and the HLC.

So in all there are 3 more beloved sons who are cornerstones with three more groups of beloved sanctified sons who are living stones.