“…wherefore, as they were white, and exceeding fair and delightsome, that they might not be enticing unto my people the Lord God did cause a SKIN OF BLACKNESS to come upon them.”
(Book of Mormon, page 61, 2 Nephi 5, verse 21)
“And the skins of the Lamanites were DARK, according to the mark which was set upon their fathers, which WAS A CURSE upon them because of their transgression…” (Book of Mormon, page 201, Alma 3, verse 6)
“…for this people shall be scattered, and shall become a DARK, a filthy, and a loathsome people, beyond the description of that which ever hath been amongst us,…” (Book of Mormon, page 468, Mormon 5, verse 15)
The Book of Mormon, however, predicts that the Indians will repent of their sins and become white:
“…and many generations shall not pass away among them, save they shall be a WHITE AND DELIGHTSOME PEOPLE.”
(Book of Mormon, page 102, 2 Nephi 30, verse 6. (The word “WHITE” was changed to “PURE” in later editions of the Book of Mormon))
2 Corinthians 4:4
In whom the god of this world hath blinded the minds of them which believe not, lest the light of the glorious gospel of Christ, who is the image of God, should shine unto them.
My first encounter with Utah LDS Missionaries, one was black so I brought up the Lamanites skin color changing to white after they got saved.
Next, I brougt up the claim that they believe in the existence of many Gods, they answered by reflex that they only worship the god of this world, so I had them read II Cor 4:4 out loud. They left crying.