Provides the new birth - "Jesus answered, Verily, verily, I say unto thee, Except a man be born of water and of the Spirit, he cannot enter into the kingdom of God. That which is born of the flesh is flesh; and that which is born of the Spirit is spirit. Marvel not that I said unto thee, Ye must be born again. The wind bloweth where it listeth, and thou hearest the sound thereof, but canst not tell whence it cometh, and whither it goeth: so is every one that is born of the Spirit" (Jn. 3:5-8).
Helps believers worship - "But the hour cometh, and now is, when the true worshippers shall worship the Father in spirit and in truth: for the Father seeketh such to worship Him. God is a Spirit: and they that worship Him must worship Him in spirit and in truth" (Jn. 4:23-24).
Fills to overflowing - "In the last day, that great day of the feast, Jesus stood and cried, saying, If any man thirst, let him come unto Me, and drink. He that believeth on Me, as the Scripture hath said, out of his belly shall flow rivers of living water. But this spake He of the Spirit, which they that believe on Him should receive: for the Holy Ghost was not yet given; because that Jesus was not yet glorified" (Jn. 7:37-39).
Indwells believers - "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" (Jn. 14:16-18).
Teaches believers - "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" (Jn. 15:26).
Glorifies Jesus - "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. He shall glorify Me: for He shall receive of mine, and shall shew it unto you. All things that the Father hath are mine: therefore said I, that He shall take of mine, and shall shew it unto you" (Jn. 16:13-15).
"...Grieve not the Holy Spirit of God,
whereby ye are sealed unto the day of redemption" (Eph. 4:30).