Heber C. Kimball describes being endowed in Nauvoo.

John C. Bennett's expose claims to reveal temple rituals.

February 3rd, 1842 Nauvoo Lodge meeting minutes.

Joseph Smith's journal notes that he taught about the priesthood.

John C. Bennett mentions oaths made in temple during Joseph Smith's time.

Record of prayer meeting in Joseph Smith's journal on October 10, 1843.

Wilford Woodruff records Joseph Smith, Jr. declaring that once the Nauvoo temple is finished ordinances for the living and dead can be performed.

Joseph teaches his hope for the dedication of the Nauvoo temple so ordinances for the living and dead can happen.

Allen Joseph Stout resolved to avenge the blood of Joseph and Hyrum Smith while there remains descendants of their murderers on the earth.

Heber C. Kimball records in his journal new arrangements for the Endowment ceremony, such as Elohim Peter, James, and John conducting Adam and Eve through the telestial and terrestrial kingdoms.

Heber C. Kimball teaches condemns practice of withholding the endowment to unmarried people.

The Warsaw Signal reports that some Latter-day Saints have shared the details of the endowment ceremony.

Increase McGee Van Dusen and Maria Van Dusen publish temple expose, report details of the oath of vengeance.

Increase Van Dusen and Maria Van Dusen published temple exposé that includes reference to an oath of vengeance.

Wilford Woodruff records meeting with a prayer circle in 1856.

John Hyde claims that the temple endowment is constantly changed.

Wilford Woodruff records in his journal that the apostles were directed to organize prayer circles.

Wilford Woodruff journal entries for June 15-16, 1867 mention prayer circles.

Jacob G. Bigler informs George A. Smith of the formation of a prayer circle.

Hymn (from the 1869 hymnal) speaking of the "blood" of those slain crying for vengeance.

T. B. H. Stenhouse notes that Church leaders saw Freemasonry as degenerate version of priesthood.

Wilford Woodruff reports receiving a commission to record the endowment in the St. George temple.

L. John Nuttall records Brigham Young's Lecture at the Veil where he said Adam came to Eden with a Celestial body and is the Father of our Spirits and of Jesus.

John Doyle Lee recalls an oath of vengeance taken by Saints to avenge the blood of Joseph and Hyrum Smith.

Wilford Woodruff mentions the first endowments for the dead in his journal.

Lucius N. Scovil testifies that on May 3, 1842 Joseph asked him and a few others to prepare the upper room of the Red Brick Store for the endowment ceremony.

Remarks in the St. George High Priest Prayer Circle minutes book for September 5, 1886.

Deseret Weekly reports on hearing in federal court about the existence of an Oath of Vengeance.

Cannon tells his son he took an oath in the Nauvoo Temple against the murderers of Joseph and Hyrum.

First Presidency and Quorum of the Twelve denies the church condones death for apostates.

Wilford Woodruff records a sermon where he addresses reasons for the Manifesto.

Wilford Woodruff describes meeting with temple presidents to harmonize the endowment across temples.

Wilford Woodruff teaches that people should be sealed to their parents rather than Church leaders.

Franklin D. Richards reports his discourse, saying that Joseph asked the Lord to restore that which was lost from Masonry.

J. R. Wallis, Sr. answers questions concerning the endowment ceremony and the oaths and covenants he made therein during the Reed Smoot Hearing in 1904.

Alonzo Arthur Noon is questioned concerning the endowment and its oaths and covenants during the Reed Smoot Hearing.

Report concerning the Reed Smoot Hearing from June 1906 discusses the Oath of Vengeance in the LDS temple ceremony.

August W. Lundstrom discusses the Oath of Vengeance during his testimony at the Reed Smoot hearing.

Contents of the "oath of vengeance" provided during the Smoot hearing. "Vengeance" to be carried out by God, not man.

James E. Talmage explains that temple designs vary according to the needs of each dispensation.

The First Presidency recommends a sacrament tray with individual metal cups.

The First Presidency releases a statement announcement changes to help Church members who live in places remote from Temples to assist them in performing ordinances on behalf of the dead.

George F. Richards records in his journal instructions for Temple workers from August 1922.

William Mitchell Paden writes a book discussing the temple endowment ceremony.

Asael C. Lambert records John A. Widtsoe's teachings concerning the temple ceremony and the revelation concerning the ceremony was kept verbal until the opening of the St. George Temple.

Harold B. Lee teaches that, although the liturgy of the temple may change, the truths conveyed "are the same regardless of how they are presented."

The First Presidency issues a statement to stake presidents instructing them to no longer issue a temple recommend to a wife whose husband is not a member of the Church.

The Tanners discuss various changes to the temple endowment.

Wilford Woodruff says that no president of the church has received all revelations related to the temple.

William Clayton describes the Nauvoo endowment.

Harold B. Lee says that the endowment's message has always been the same.

David John Buerger's "The Development of the Mormon Temple Endowment Ceremony," references the oath of vengeance removal.

Jerald and Sandra Tanner report the contents of the lecture at the veil.

The Church News reports on the Swiss Temple and the creation of the endowment in multiple languages.

George F. Richards instructs the St. George Temple president to cease references to retribution in the endowment.

The First Presidency directs that prayer circles should no longer take place outside of the temple.

David O. McKay noted in his diary that minor recommended changes to the endowment aimed at clarifying and streamlining the ordinances.

3 Nephi 11:22-26 gives instructions for performing baptism.

D&C 27 states that Saints can use water instead of wine in the sacrament.

Instructions on administering the sacrament in D&C 20:75-79.

David O. McKay reports on First Presidency's decision in 1953 for sound and pictures of the temple ceremonies to be presented in new temples.

The Church's Website reports on a First Presidency statement on temples; acknowledges that changes have been, and continue to be, made to the temple "as directed by the Lord to His servants."

Article on the Church website about how the Influenza Epidempic influenced the administration of the sacrament.

David A. Bednar teaches about preparing to enter the temple and lists the covenants made in the endowment.

First Presidency released a statement discussing adjustments to temple ceremonial clothing.

The First Presidency teaches that, through inspiration, changes have been made to the temple endowment "to help members better understand and live what they learn in the temple."

The First Presidency asks members not to talk about changes to the endowment.

Russell M. Nelson, during General Conference, teaches that there have been changes to the Temple ceremony since the time of Joseph.

Russell M. Nelson discusses the changes to the temple ceremony since the time of Joseph.

Topics and Questions entry for "Endowment" on churchofjesuschrist.org explains the purpose of the temple endowment.

The Church Handbook says that temple ordinances are sacred and information promised not to be shared should not be revealed.