The comforter is the Holy Spirit according to John 14:26
But the Comforter, who is the Holy Spirit, 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.
Q: "Jesus say that if I go then the comforter will come but the Holy Spirit was already there with Jesus, so how come the comforter is Holy Spirit?"
We know that Jesus was baptised in the Holy Spirit from John 3:16. But, where Jesus goes, the Holy Spirit goes with him.
Jesus said in 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."
The key words here are "come unto".
- Come - erchomai (meaning from one place to another, to go, to follow
one)
- Unto - pros (meaning to the advantage of, at, near, by, towards)
So essentially it means, this. That the Holy Spirit is with Jesus, but when he assends to the father (after his death and resurrection) he will send the Holy Spirit to be with all believers. Or to follow all believers.
1 Cor 6:19 - 19 What? know ye not that your body is the temple of the
Holy Ghost which is in you, which ye have of God, and ye are not your
own?
Still not convinced that the Comforter is the Holy Spirit?
John 14:17 - "Even the Spirit of truth; whom the world cannot receive,
because it sees him not, neither knows him: but you know him; for he
dwells with you, and shall be in you."
The only one we're told that would dwell IN us is The Holy Spirit. The context of the entire passage is talking about the Holy Spirit. The Comforter IS the Holy Spirit. There is none other. The comforter and Jesus are very much the same character. Jesus said many times if you know me, you know my father also. The Holy Spirit exhibits the same character. If you know Jesus you know the Holy Spirit also. Do you know him?