Explain that in 1831, while Joseph Smith was working on the inspired translation of the Old Testament, known as the Joseph Smith Translation, he read that some of the ancient prophets practiced plural marriage (also called polygamy). These prophets included Abraham, Jacob, Moses, and David. Joseph Smith studied and pondered the scriptures to know how these prophets were justified in this practice (see D&C 132:1–2). The Lord revealed the answers to his questions in a revelation now known as Doctrine and Covenants 132. Although the date of this revelation is July 12, 1843, it is likely that Joseph Smith was receiving revelation on the principles recorded in this section over time, beginning as early as 1831.

Invite a few students to take turns reading aloud Doctrine and Covenants 132:34–36. Ask the class to follow along, looking for why Abraham and Sarah began to practice plural marriage.

According to verse 34, why did Sarah give Abraham another wife? What does this teach us about the practice of plural marriage? (As students respond, write the following principle on the board: Plural marriage is an acceptable practice only when the Lord commands it.)

Invite a student to read Jacob 2:27, 30 aloud. Emphasize the following principle: Marriage between one man and one woman is God’s standard unless He commands otherwise. Point out that these verses also include a reason given by the Lord for the practice of plural marriage﻿—to “raise up seed unto [the Lord]” by increasing the number of children born to faithful parents (see also D&C 132:63).

Explain that the Lord revealed to Joseph Smith, as recorded in Doctrine and Covenants 132:37–43, that when His people practice plural marriage because He has commanded them to do so, they are not guilty of the sin of adultery. However, anyone who practices plural marriage without receiving a commandment from the Lord through His prophet is guilty of adultery. Point out to students that the word destroyed in verses 41 and 54 means that those who violate their sacred covenants, including their marriage covenant, will be separated from God and from His covenant people (see also Acts 3:22–23; 1 Nephi 22:20).

Invite students to silently read Doctrine and Covenants 132:40 and identify another reason given by the Lord for the practice of plural marriage.

According to verse 40, what was the Lord going to do in the last dispensation? (“Restore all things.”)

Explain that the words “all things” refer to the laws and ordinances of the gospel that had been revealed in previous dispensations. Write the following truth on the board: The commandment to live the law of plural marriage in the latter days was part of the Restoration of all things (see also Acts 3:20–21).

Invite a student to read aloud Doctrine and Covenants 132:45, 48. Ask the class to follow along, looking for what made it possible for Joseph Smith to participate in bringing about the Restoration of all things. Help students understand the following principle: Plural marriage can be authorized only through the priesthood keys given to the President of the Church.