The passages say that the Spirit of Truth is the Holy Spirit and you are saying that the Spirit of Truth brings the Holy Spirit.
No, there are no passages that
say that the Spirit of Truth
is the Holy Spirit.
John 15:26 But when the Comforter is come, whom I will send unto you from the Father, even the Spirit of truth, which proceedeth from the Father, he shall testify of me:
John 16:12-13 I have yet many things to say unto you, but ye cannot bear them now. Howbeit when he, the Spirit of truth, is come, he will guide you into all truth: for he shall not speak of himself; but whatsoever he shall hear, that shall he speak: and he will shew you things to come.
John 16:14 He shall glorify me: for he shall receive of mine, and shall shew it unto you.
So Jesus did not bring the Holy Spirit, it was sent from the Father, and we are told that the last days began with Jesus.
No, the last days did not begin with Jesus the last days begin when Christ returns.
Jesus was an advocate, and that means that He was a helper and intercedes and advocates for the disciples and the Holy Spirit does, and so the Holy Spirit can be called another Parakletos.
The problem with the Spirit of Truth being Baha'u'llah is that Baha'u'llah was a man and the Spirit of Truth is a spirit, the Holy Spirit.
If Jesus was an advocate that means that the advocate cannot be the Holy Spirit as you have been saying, since Jesus is not the Holy Spirit. If Jesus was an advocate (comforter) that means that Baha’u’llah can also be an advocate (another Comforter).
John 14:16 And I will pray the Father, and he shall give you another Comforter, that he may abide with you for ever;
Nowhere in the Bible does it say that the Spirit of truth
is a spirit, the Holy Spirit. A spirit cannot testify of Jesus, only a man can do that.
John 15:26 But when the Comforter is come, whom I will send unto you from the Father, even the Spirit of truth, which proceedeth from the Father, he shall testify of me:
John 14:26 is plain English and means that the Advocate is the Holy Spirit whom the Father will send. No it could not mean what you propose it could mean. That is just changing the meaning.
But the Holy Spirit, a spirit, who is the promised Advocate, was promised to the disciples Jesus was speaking to. Read the passages again and it is plain. Also the Holy Spirit that was promised to them (the same one that is the Advocate and Spirit of Truth) was given to them at Pentecost.
You cannot just cherry pick one verse and try to understand what it means out of the context of all the other verses.
John 14
18 I will not leave you comfortless: I will come to you.
Jesus was the comforter and that is why He said “I will not leave you comfortless: I will come to you.” Jesus did not say I will send the Holy Spirit to you, He said
I will come to you
16 And I will pray the Father, and he shall give you another Comforter, that he may abide with you for ever;
Baha’u’llah was another Comforter.
26 But the Comforter, which is the Holy Ghost, whom the Father will send in my name, he shall teach you all things, and bring all things to your remembrance, whatsoever I have said unto you.
It is the Holy Spirit that teaches all things through Baha’u’llah.
Jesus finished His work on earth so was going to return to the Father and the world would not see Him any more because of that. But He was not going to leave them as orphans, He would come to them along with the Father and dwell in them. Jesus and the Father were going to be in the promised Holy Spirit (Spirit of Truth) and live in the disciples. But that does not mean that Jesus promise of returning one day is not true. It is just as true as the fact that Jesus had finished His work and was going to go to the Father.
Jesus never promised to return to earth.
John 14:19 Yet a little while, and the world seeth me no more; but ye see me: because I live, ye shall live also.
John 17:11 And now I am no more in the world, but these are in the world, and I come to thee. Holy Father, keep through thine own name those whom thou hast given me, that they may be one, as we are.
The passage does not mention physical body or spirit, but that is OK as we already know that Jesus was in His resurrection body, His spiritual body, which is immortal and incorruptible and can live anywhere and also which is not just spirit but is flesh and bone. (Notice the passage says flesh and bone and not flesh and blood and also notice that Jesus says that He is not a spirit). This is the body He was in when He ascended to heaven logically.
There is nothing logical about that, it is all a made up fantasy. There is no such body that is
both spiritual and physical. There is nothing physical in the spiritual world (heaven).
There is no such thing as a physical body that is
transformed into an immortal body. It is not in the Bible anywhere. This is a Christian belief that came about because the Bible was
misinterpreted. ALL these misconceptions about a Resurrection Body came about because Christians believe that Jesus rose from the dead.
It is clear and plain what the Bible says.
There are
physical bodies and
spiritual bodies, as Paul said. The physical body is the source of all corruption as the Bible says, it is the source of dishonor, it is weak, and that is because the physical body is subject to sin.
The spiritual body is incorruptible because spirit can never die. Paul said that the body is raised in glory and raised in power and that is because the spiritual body has glory and power. The soul (spirit) is glorified and has power because it was created by God.
Baha’is believe that souls go to heaven and take on a spiritual body, which is the same thing as what Paul says in 1st Cor:
We are raised in a spiritual body because only spiritual bodies can enter heaven.
1st Corinthians 15
35 But some man will say, How are the dead raised up? and with what body do they come?
36 Thou fool, that which thou sowest is not quickened, except it die:
42 So also is the resurrection of the dead. It is sown in corruption; it is raised in incorruption:
43 It is sown in dishonour; it is raised in glory: it is sown in weakness; it is raised in power:
44 It is sown a natural body; it is raised a spiritual body. There is a natural body, and there is a spiritual body.
46 Howbeit that was not first which is spiritual, but that which is natural; and afterward that which is spiritual.
50 Now this I say, brethren, that flesh and blood cannot inherit the kingdom of God; neither doth corruption inherit incorruption.
53 For this corruptible must put on incorruption, and this mortal must put on immortality.
The verse above says nothing about the physical body being
changed into a glorified body that cannot die. The verses above clearly state that there are two kinds of bodies, a natural body and a spiritual body; we are sown in a natural body and we are raised in a spiritual body.
Baha'u'llah has to descend from heaven the way Jesus ascended, when the disciples saw Him ascend bodily and disappear into the clouds in the sky.
Nowhere does the Bible say they saw Jesus ascend
bodily. That is just your mistaken assumption and not all Christians believe what you believe. Many Christians who are reading the same Bible believe that it was the Spirit that ascended to heaven.
So why say that the Spirit comes before the signs of the end, as in the prophecy of Joel?
I never said that. I said that the Spirit comes
after the signs of the end, as in the prophecy of Joel.
Acts 2:17-21 And it shall come to pass in the last days, saith God, I will pour out of my Spirit upon all flesh: and your sons and your daughters shall prophesy, and your young men shall see visions, and your old men shall dream dreams: And on my servants and on my handmaidens I will pour out in those days of my Spirit; and they shall prophesy: And I will shew wonders in heaven above, and signs in the earth beneath; blood, and fire, and vapour of smoke: The sun shall be turned into darkness, and the moon into blood, before the great and notable day of the Lord come: And it shall come to pass, that whosoever shall call on the name of the Lord shall be saved.