The work of the Holy Ghost is to/for:
WITNESS, to all mankind, of the Eternal Father and His son Jesus Christ.
TESTIFY of the truth of all things.
TEACH all things pertaining to the truth.
SHOW us all things we should do.
COMFORT mankind with HOPE of eternal salvation with the Father through the Son.
PERFECT LOVE – to fill us with the perfect love of the Father through the Son.
SANCTIFY mankind through leading them into obedience of the Father’s law.
GIFTS are given to mankind as they follow the path of Truth, to bless them and others.
“And then are ye in this strait and narrow path which leads to eternal life; yea, ye have entered in by the gate; ye have done according to the commandments of the Father and the Son; and ye have received the Holy Ghost, which witnesses of the Father and the Son, unto the fulfilling of the promise which he hath made, that if ye entered in by the way ye should receive.” (RLDS ) (LDS 2 Nephi 31:18)
“And by the power of the Holy Ghost ye may know the truth of all things.” (RLDS )(LDS Moroni 10:5)
“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.” (JOHN 14:26)
“For behold, again I say unto you that if ye will enter in by the way, and receive the Holy Ghost, it will show unto you all things what ye should do.” (RLDS )(LDS 2 Nephi 32:5)
“And the remission of sins bringeth meekness, and lowliness of heart; and because of meekness and lowliness of heart cometh the visitation of the Holy Ghost, which Comforter filleth with hope and perfect love, which love endureth by diligence unto prayer, until the end shall come, when all the saints shall dwell with God.” (RLDS ) (LDS Moroni 8:6)