Moses 6:52 If thou wilt turn unto me, and hearken unto my voice, and believe, and repent of all thy transgressions, and be baptized, even in water, in the name of mine Only Begotten Son, who is full of grace and truth, which is Jesus Christ, the only name which shall be given under heaven, whereby salvation shall come unto the children of men, ye shall receive the gift of the Holy Ghost, asking all things in his name, and whatsoever ye shall ask, it shall be given you.The preaching of Enoch:
Moses 7:10-11The gospel and preaching of Noah and Enoch:
10 And the Lord said unto me: Go to this people, and say unto them—Repent, lest I come out and smite them with a curse, and they die.
11 And he gave unto me a commandment that I should baptize in the name of the Father, and of the Son, which is full of grace and truth, and of the Holy Ghost, which beareth record of the Father and the Son.
Moses 8:19-20, 23-24The ministry of Abraham:
19 And the Lord ordained Noah after his own order, and commanded him that he should go forth and declare his Gospel unto the children of men, even as it was given unto Enoch.
20 And it came to pass that Noah called upon the children of men that they should repent; but they hearkened not unto his words[.]
23 And it came to pass that Noah continued his preaching unto the people, saying: Hearken, and give heed unto my words;
24 Believe and repent of your sins and be baptized in the name of Jesus Christ, the Son of God, even as our fathers, and ye shall receive the Holy Ghost, that ye may have all things made manifest; and if ye do not this, the floods will come in upon you; nevertheless they hearkened not.
Abraham 1:19 As it was with Noah so shall it be with thee; but through thy ministry my name shall be known in the earth forever, for I am thy God.The preaching of Melchizedek:
Alma 13:17-18The preaching of Nephi:
17 Now this Melchizedek was a king over the land of Salem; and his people had waxed strong in iniquity and abomination; yea, they had all gone astray; they were full of all manner of wickedness;
18 But Melchizedek having exercised mighty faith, and received the office of the high priesthood according to the holy order of God, did preach repentance unto his people. And behold, they did repent; and Melchizedek did establish peace in the land in his days; therefore he was called the prince of peace, for he was the king of Salem; and he did reign under his father.
2 Nephi 31:13, 17, 20The preaching of John:
13 Wherefore, my beloved brethren, I know that if ye shall follow the Son, with full purpose of heart, acting no hypocrisy and no deception before God, but with real intent, repenting of your sins, witnessing unto the Father that ye are willing to take upon you the name of Christ, by baptism—yea, by following your Lord and your Savior down into the water, according to his word, behold, then shall ye receive the Holy Ghost; yea, then cometh the baptism of fire and of the Holy Ghost; and then can ye speak with the tongue of angels, and shout praises unto the Holy One of Israel.
17 Wherefore, do the things which I have told you I have seen that your Lord and your Redeemer should do; for, for this cause have they been shown unto me, that ye might know the gate by which ye should enter. For the gate by which ye should enter is repentance and baptism by water; and then cometh a remission of your sins by fire and by the Holy Ghost.
20 Wherefore, ye must press forward with a steadfastness in Christ, having a perfect brightness of hope, and a love of God and of all men. Wherefore, if ye shall press forward, feasting upon the word of Christ, and endure to the end, behold, thus saith the Father: Ye shall have eternal life.
JST Matt 3:38 I indeed baptize you with water, upon your repentance; and when he of whom I bear record cometh, who is mightier than I, whose shoes I am not worthy to bear (or whose place I am not able to fill), as I said, I indeed baptize you before he cometh, that when he cometh, he may baptize you with the Holy Ghost and fire (see also JST Luke 3:2-3, 12-24).The preaching of Jesus (believing on Jesus entails doing what he commands in the Sermon, which defines "repentance" and "coming down into the depth of humility"):
JST Matthew 5:3-4
3 Blessed are they who shall believe on me; and again, more blessed are they who shall believe on your words when ye shall testify that ye have seen me and that I am.
4 Yea, blessed are they who shall believe on your words, and come down into the depth of humility, and be baptized in my name; for they shall be visited with fire and the Holy Ghost and shall receive a remission of their sins.
3 Nephi 27:20-21The preaching of the Apostles:
20 Now this is the commandment: Repent, all ye ends of the earth, and come unto me and be baptized in my name, that ye may be sanctified by the reception of the Holy Ghost, that ye may stand spotless before me at the last day.
21 Verily, verily, I say unto you, this is my gospel[.]
Acts 2:38-39The preaching of Joseph:
Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost. For the promise is unto you, and to your children, and to all that are afar off, even as many as the Lord our God shall call.
And now to show our doctrine on this subject, we shall commence with the first principles of the Gospel, which are faith, repentance, and baptism for the remission of sins, and the gift of the Holy Ghost by the laying on of the hands. This we believe to be our duty--to teach to all mankind the doctrine of repentance (TPJS, p. 80)[.]We are commanded to preach this same gospel:
2 Nephi 26:27 [H]e hath commanded his people that they should persuade all men to repentance.
Cry peace. Proclaim my words. Invite those who will repent to be baptized and forgiven, and they shall obtain my Spirit to guide them. The time is short and I come quickly, therefore open your mouths and warn others to flee the wrath which is to come as men in anger destroy one another. The wicked shall destroy the wicked, and I will hold the peacemakers in the palm of my hand and none can take them from me (A&C, p. 9).But, even if we should refuse to obey and teach the gospel of Jesus Christ, his rock and his salvation, it shall be done, even if it be by another people.
JST Matthew 24:32 And again, this gospel of the kingdom shall be preached in all the world for a witness unto all nations; and then shall the end come, or the destruction of the wicked.