"Lectures on Faith" is a set of seven lectures on the doctrine and theology of the Church of Jesus Christ of Latter Day Saints, first published as the doctrine portion of the 1835 edition of the canonical Doctrine and Covenants, but later removed from that work by both major branches of the faith. The lectures were originally presented by Joseph Smith to a group of elders in a course known as the "School of the Prophets" in the early winter of 1834–35 in Kirtland, Ohio.
Although authorship of the lectures is uncertain, studies suggest that the actual wording was largely by Sidney Rigdon, with substantial involvement and approval by Joseph Smith and possibly others. (See Dahl & Tate at 7–10, 16 n. 8.) Smith was involved, both in their authorship in November 1834 and in their later preparation for publication in January 1835. (See History of the Church 2:169–70, 180.)
The original title of each lecture was "Of Faith". It was not until 1876, in an edition of the Doctrine and Covenants edited by Church Historian Orson Pratt of the Quorum of the Twelve Apostles of The Church of Jesus Christ of Latter-day Saints (LDS Church), that the title was given as "Lectures on Faith".
Possibly the most famous quotation is from Lecture 6:7: "A religion that does not require the sacrifice of all things, never has power sufficient to produce the faith necessary unto life and salvation".
Faith gives rise to all human endeavors in both worldly and spiritual matters, and is a source of power, both in man and God.
The human family’s knowledge of God began with God’s interaction with Adam before The Fall, which knowledge was retained after The Fall, and which knowledge has been transmitted via human testimony among Adam's descendants. Although people since Adam have had to rely on human testimony to learn about God, God can choose to reveal himself directly (as he did to Adam) to those who live a life of devout prayer and service to God.