Ether 4:10-12

Moroni tells us if we believe the word of the Lord will be visited by the Spirit. “And behold, whosoever believeth on my words, them will I visit with the manifestation of my Spirit; and they shall be born of me, even of water and of the Spirit” (D&C 5:16)

Through the Spirit, we will know truth and bear record of what we know. “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” (2 Nephi 32:5).

“And blessed are the Gentiles, because of their belief in me, in and of the Holy Ghost, which witnesses unto them of me and of the Father” (3 Nephi 16:6).

Through the Spirit, we will gain a testimony of truth. “And blessed are the Gentiles, because of their belief in me, in and of the Holy Ghost, which witnesses unto them of me and of the Father” (Psalms 19:6).

When Peter testified of Christ, Jesus answered, “And Jesus answered and said unto him, Blessed art thou, Simon Bar-jona: for flesh and blood hath not revealed it unto thee, but my Father which is in heaven” (Matthew 16:17).

“And Alma went and began to declare the word of God unto the church which was established in the valley of Gideon, according to the revelation of the truth of the word which had been spoken by his fathers, and according to the spirit of prophecy which was in him, according to the testimony of Jesus Christ, the Son of God, who should come to redeem his people from their sins, and the holy order by which he was called.” (Alma 6:8).

The Spirit will testify to truth because He persuades us to do good. Whatever persuades us to do good comes from Christ. Amaleki wrote, “[F]or there is nothing which is good save it comes from the Lord: and that which is evil cometh from the devil” (Omni 1:25).

Preaching to the people of Zarahemla, Alma₂ told them, “For I say unto you that whatsoever is good cometh from God, and whatsoever is evil cometh from the devil” (Alma 5:40).

Moroni is sharing words Mormon wrote to him in an epistle.

“For behold, the Spirit of Christ is given to every man, that he may know good from evil; wherefore, I show unto you the way to judge; for every thing which inviteth to do good, and to persuade to believe in Christ, is sent forth by the power and gift of Christ; wherefore ye may know with a perfect knowledge it is of God.

“But whatsoever thing persuadeth men to do evil, and believe not in Christ, and deny him, and serve not God, then ye may know with a perfect knowledge it is of the devil; for after this manner doth the devil work, for he persuadeth no man to do good, no, not one; neither do his angels; neither do they who subject themselves unto him” Moroni 7:16-17).

He leads us to good. If we don’t believe His words, we will not believe Him. “Verily, verily, I say unto you, that this is my doctrine, and I bear record of it from the Father; and whoso believeth in me believeth in the Father also; and unto him will the Father bear record of me, for he will visit him with fire and with the Holy Ghost” (3 Nephi 11:35).

“And wo be unto him that will not hearken unto the words of Jesus, and also to them whom he hath chosen and sent among them; for whoso receiveth not the words of Jesus and the words of those whom he hath sent receiveth not him; and therefore he will not receive them at the last day” (3 Nephi 28:34).

I am the same that leadeth men to all good; he that will not believe my words will not believe me—that I am; and he that will not believe me will not believe the Father who sent me. For behold, I am the Father, I am the light, and the life, and the truth of the world.

We will also reject the Father as He sent Christ. He is the father and the light, life, and truth of the world. “Then spake Jesus again unto them, saying, I am the light of the world: he that followeth me shall not walk in darkness, but shall have the light of life” (John 8:12).

“Wherefore he saith, Awake thou that sleepest, and arise from the dead, and Christ shall give thee light” (Ephesians 5:14).

“Behold, I am the law, and the light. Look unto me, and endure to the end, and ye shall live; for unto him that endureth to the end will I give eternal life” (3 Nephi 15:9).

“Behold, I am Jesus Christ, the Son of God. I am the same that came unto mine own, and mine own received me not. I am the light which shineth in darkness, and the darkness comprehendeth it not” (D&C 6:21).