According to the Book of Mormon, D&C, Pearl of great price and/or prophets, what prohibits lust? What does the Book of Mormon, Doctrine and Covenants, Pearl of Great Price, or prophets say about the prohibition of lust as a sin?
The LDS believe in chastity or in being sexually pure. The Law of Chasity describes the commandment to not commit adultery, or to lust.

Scriptures from Doctrine and Covenants:


D&amp;C 42:22-23 - lust causes you to lose the Spirit and deny the faith
D&amp;C 59:6 - don't commit adultery or anything like unto it
D&amp;C 63:16 - lust, or adultery in the heart, loses the Spirit


Scriptures from the Book of Mormon


3 Nephi 12:28 - lust is adultery in the heart
Alma 39:9 - don't go after lust of eyes


Scriptures from Pearl of Great Price


Article of Faith 13 we believe in being chaste


Prophetic teachings


We Believe in Being Chaste by Elder David A Bednar
Personal Purity by Elder Jeffrey R Holland