Baha'is believe that Baha'u'llah was the Comforter who brought the Holy Spirit. Jesus had to go away to heaven so He could send the Comforter from the Father who is in heaven.
This is completely in opposition to Scripture and does not in any way refer to some future time 1800 years later.
Let's look at more of the chapter and see what it says. And by the way Jesus left (physically) the earth 2,000 years ago
John 16
7 Nevertheless I tell you the truth; It is expedient for you that I go away: for if I go not away, the Comforter will not come unto you; but if I depart, I will send him unto you.
8
And when he is come, he will reprove the world of sin, and of righteousness, and of judgment:
9 Of sin, because they believe not on me;
10 Of righteousness, because I go to my Father, and ye see me no more;
11 Of judgment, because the prince of this world is judged.
12 I have yet many things to say unto you, but ye cannot bear them now.
13
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.
These entire verses speak of Jesus leaving to go back to the Father, (specifically dying, rising from the dead then after 40 days telling his disciples to wait in Jerusalem for the POWER of the Holy Spirit to come upon them.
He then goes up into the clouds and>>>>>>>>>>>
After 10 days this happened. Exactly 50 days after his resurrection. This falls exactly inline with Moses with fulfilling what happened at Mount Sinai. When after 50 days of being delivered from Egypt the Israelites receive the Ten Commandments. (PENTECOST). By the way, Jesus fulfilled the old testament natural (physical event) of the PASSOVER, the command to put Blood on the doorpost of their house so that when the Angel of death came to kill the firstborn, it would SEE THE BLOOD and pass by......PASSOVER
1,500 years later, After Jesus rose from the dead (Delivered us from sin), and poured out his BLOOD for us that if we would accept his forgiveness and receive him as Lord, when judgement Day comes to ALL Mankind, God will see the BLOOD over the doors of our Hearts and PASSOVER. Jesus then sends the LAWGIVER into the hearts of all that believe in his death, burial and resurrection, and we are now living the fulfilled promise according to Joel 2:28 and what Peters first sermon was after being Baptized and empowered by the Promised Holy Spirit!
Acts 2:14-
Then Peter stood up with the Eleven, raised his voice and addressed the crowd: “Fellow Jews and all of you who live in Jerusalem, let me explain this to you; listen carefully to what I say. 15 These people are not drunk, as you suppose. It’s only nine in the morning! 16 No, this is what was spoken by
the prophet Joel:
17 “‘In the last days, God says,
I will pour out my Spirit on all people.
Your sons and daughters will prophesy,
your young men will see visions,
your old men will dream dreams.
18 Even on my servants, both men and women,
I will pour out my Spirit in those days,
and they will prophesy.
19 I will show wonders in the heavens above
and signs on the earth below,
blood and fire and billows of smoke.
20 The sun will be turned to darkness
and the moon to blood
before the coming of the great and glorious day of the Lord.
21
And everyone who calls
on the name of the Lord will be saved.’[
c]
22 “Fellow Israelites, listen to this:
Jesus of Nazareth was a man accredited by God to you by miracles, wonders and signs, which God did among you through him, as you yourselves know. 23 This man was handed over to you by God’s deliberate plan and foreknowledge; and you, with the help of wicked men,[
d] put him to death by nailing him to the cross. 24
But God raised him from the dead, freeing him from the agony of death, because it was impossible for death to keep its hold on him. 25 David said about him:
“‘I saw the Lord always before me.
Because he is at my right hand,
I will not be shaken.
26 Therefore my heart is glad and my tongue rejoices;
my body also will rest in hope,
27 because you will not abandon me to the realm of the dead,
you will not let your holy one see decay.
28 You have made known to me the paths of life;
you will fill me with joy in your presence.’[
e]
29 “Fellow Israelites, I can tell you confidently that the patriarch David died and was buried, and his tomb is here to this day. 30 But he was a prophet and knew that God had promised him on oath that he would place one of his descendants on his throne. 31 Seeing what was to come, he spoke of the resurrection of
the Messiah,
(CHRIST) that he was not abandoned to the realm of the dead, nor did his body see decay. 32 God has raised this Jesus to life, and we are all witnesses of it. 33
Exalted to the right hand of God, he has received from the Father the promised Holy Spirit and has poured out what you now see and hear. 34 For David did not ascend to heaven, and yet he said,
“‘The Lord
(Father) said to my Lord:
(Jesus, Son)
“Sit at my right hand
35 until I make your enemies
a footstool for your feet.”’[
f]
36 “Therefore let all Israel be assured of this: God has made this Jesus, whom you crucified,
both Lord and Messiah.”
37 When the people heard this, they were cut to the heart and said to Peter and the other apostles, “Brothers, what shall we do?”
38 Peter replied, “
Repent and be baptized, every one of you, in the name of Jesus Christ for the forgiveness of your sins. And you will receive the gift of the Holy Spirit. 39 The promise is for you and your children and for all who are far off—for all whom the Lord our God will call.”