Nearly all denominations teach only the first part of the promise of the Comforter, which is John 14:16-17. But what does the full promise of John 14:16-23 say about who our Comforter is? Our Lord Jesus Christ expressly said that He Himself would come to us (John 14:18) and be in us (John 14:20), for He would manifest Himself to us (John 14:21-22). See the full promise for yourself:
John 14:16-23 ..."And I will pray the Father, and he shall give you another Comforter, that he may abide with you for ever; Even the Spirit of truth; whom the world cannot receive, because it seeth him not, neither knoweth him: but ye know him; for he dwelleth with you, and shall be in you. I will not leave you comfortless: I will come to you. Yet a little while, and the world seeth me no more; but ye see me: because I live, ye shall live also. At that day ye shall know that I am in my Father, and ye in me, and I in you. He that hath my commandments, and keepeth them, he it is that loveth me: and he that loveth me shall be loved of my Father, and I will love him, and will manifest myself to him. Judas saith unto him, not Iscariot, Lord, how is it that thou wilt manifest thyself unto us, and not unto the world? Jesus answered and said unto him, If a man love me, he will keep my words: and my Father will love him, and we will come unto him, and make our abode with him."
Did Christ proclaim that He Himself is our Comforter? Any Biblical question must be answered with Biblical definitions, not human traditions. See for yourself the Biblical definitions for all of the Comforter passages from John chapter 14 to chapter 16:
Question - Who is the "Comforter" (Greek: parakletos)? John 14:16
Answer - 'My little children, these things write I unto you, that ye sin not. And if any man sin, we have an advocate (Greek: parakletos) with the Father, Jesus Christ the righteous.' 1 John 2:1
Question - What did Christ mean by 'another?' John 14:16
Answer - 'After that he appeared in another form unto two of them, as they walked, and went into the country.' Mark 16:12
Question - - Who will 'abide with you forever' John 14:16
Answer - 'Teaching them to observe all things whatsoever I have commanded you: and lo, I am with you always, even unto the end of the world. Amen.' Matthew 28:20
Question - Who is 'truth?' John 14:17
Answer - ' Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me.' John 14:6
Question - Who is the 'Spirit of truth?' John 14:17
Answer - 'And because ye are sons, God hath sent forth the Spirit of his Son into your hearts, crying, Abba, Father. Wherefore thou art no more a servant, but a son; and if a son, then an heir of God through Christ.' Galatians 4:6-7
Question - Did Christ ever refer to Himself as 'He'? John 14:17
Answer - 'But he that entereth in by the door is the shepherd of the sheep. To him the porter openeth; and the sheep hear his voice: and he calleth his own sheep by name, and leadeth them out. And when he putteth forth his own sheep, he goeth before them, and the sheep follow him: for they know his voice. ... I am the good shepherd, and know my sheep, and am known of mine. As the Father knoweth me, even so know I the Father: and I lay down my life for the sheep. And other sheep I have, which are not of this fold: them also I must bring, and they shall hear my voice; and there shall be one fold, and one shepherd.' John 10:2-4, 16-18
Question - Does Christ 'come to you'? John 14:18
Answer - 'Behold, I stand at the door, and knock: if any man hear my voice, and open the door, I will come in to him, and will sup with him, and he with me.' Revelation 3:20
Question - - What does 'in my Father' mean? John 14:10
Answer - 'Believest thou not that I am in the Father, and the Father in me? the words that I speak unto you I speak not of myself: but the Father that dwelleth in me, he doeth the works.'
Question - Is Christ 'in you?' John 14:20
Answer - 'I am crucified with Christ: nevertheless I live; yet not I, but Christ liveth in me: and the life which I now live in the flesh I live by the faith of the Son of God, who loved me, and gave himself for me.' Galatians 2:20
Question - - Does Christ 'manifest Himself?' John 14:21-22
Answer - 'But their minds were blinded: for until this day remaineth the same vail untaken away in the reading of the old testament; which vail is done away in Christ. But even unto this day, when Moses is read, the vail is upon their heart. Nevertheless when it shall turn to the Lord, the vail shall be taken away. Now the Lord is that Spirit: and where the Spirit of the Lord is, there is liberty.' 2 Corinthians 3:14-17
Question - Christ said "we will come" - Who comes with Christ? John 14:23
Answer - 'Neither pray I for these alone, but for them also which shall believe on me through their word; That they all may be one; as thou, Father, art in me, and I in thee, that they also may be one in us: that the world may believe that thou hast sent me. And the glory which thou gavest me I have given them; that they may be one, even as we are one: I in them, and thou in me, that they may be made perfect in one; and that the world may know that thou hast sent me, and hast loved them, as thou hast loved me.' John 17:20-23
Question - Who made "our abode" with us? John 14:23
Answer - 'Now our Lord Jesus Christ himself, and God, even our Father, which hath loved us, and hath given us everlasting consolation and good hope through grace, Comfort your hearts, and stablish you in every good word and work.' 2 Thessalonians 2:16-17
Question - Who teaches us all things? John 14:26-28
Answer - "But the anointing which ye have received of him abideth in you, and ye need not that any man teach you: but as the same anointing teacheth you of all things, and is truth, and is no lie, and even as it hath taught you, ye shall abide in him." 1 John 2:27
Question - Who testifies of Christ? John 15:26
Answer - "Searching what, or what manner of time the Spirit of Christ which was in them did signify, when it testified beforehand the sufferings of Christ, and the glory that should follow." 1 Peter 1:11
Question - Why could the Comforter not come until Christ left? John 16:7
Answer - "This Jesus hath God raised up, whereof we all are witnesses. Therefore being by the right hand of God exalted, and having received of the Father the promise of the Holy Ghost, he hath shed forth this, which ye now see and hear." Acts 2:32-33
Question - How does the Spirit of truth not speak of Himself? John 16:8-16
Answer - "For I have not spoken of myself; but the Father which sent me, he gave me a commandment, what I should say, and what I should speak." John 12:49
Question - Did Christ talk about the Comforter in the style of proverbs?
Answer - "These things have I spoken unto you in proverbs: but the time cometh, when I shall no more speak unto you in proverbs, but I shall shew you plainly of the Father." John 16:25
Question - Why do we need to know that Jesus Christ is the Comforter?
Answer - "I counsel thee to buy of me gold tried in the fire, that thou mayest be rich; and white raiment, that thou mayest be clothed, and that the shame of thy nakedness do not appear; and anoint thine eyes with eyesalve, that thou mayest see." Revelation 3:18
Question - Finally, is this an eternal life issue?
Answer - ..."And this is life eternal, that they might know thee the only true God, and Jesus Christ, whom thou hast sent." John 17:3