For a book published in 1830, long before plural marriage became a controversy in the Latter-day Saint movement, the Book of Mormon is remarkably clear and forceful about what God expects in marriage. It contains the strongest scriptural denunciation of polygamy anywhere in scripture (Jacob 2) and consistently portrays plural marriage as a sign of spiritual decay—not covenant faithfulness.

On top of that, the Book of Mormon includes a powerful narrative example: Abinadi’s confrontation with King Noah and his priests, a story that illustrates the moral and spiritual corruption that accompanies plural marriage when it is rooted in selfish desire rather than divine command.

Let’s examine what the text actually says.

 Jacob 2 — Scripture’s Most Direct Condemnation of Polygamy

• Jacob’s sermon is the doctrinal centerpiece of the Book of Mormon’s teaching on marriage. Speaking in the temple “according to the strict commandment of God,” Jacob rebukes the men for seeking “many wives and concubines” (Jacob 2:23).

Jacob 2:24 — God’s Judgment on Biblical Polygamy

“Behold, David and Solomon truly had many wives and concubines, which thing was abominable before me, saith the Lord.”

No other scripture speaks this clearly about the moral status of David and Solomon’s polygamy. The Old Testament reports their marriages.
The Book of Mormon evaluates them.

• And God’s evaluation is unequivocal:
  not divine, not commanded—abominable.

Jacob 2:27–28 — God’s Standard

“For there shall not any man among you have save it be one wife;
and concubines he shall have none;
For I, the Lord God, delight in the chastity of women.”

God links plural marriage to:

• wounded women
• broken families
• exploitation
• “grosser crimes” (v. 22)

Plural marriage is condemned because it harms God’s daughters.

The Exception Clause — Rare, Specific, and Misunderstood

The only exception given in all scripture is in Jacob 2:30, and it is often misunderstood or misused:

“For if I will… raise up seed unto me, I will command my people; otherwise they shall hearken unto these things.”

This is not:

• a celestial law,
• a requirement for exaltation,
• a permanent covenant pattern, or
• a doctrine for normal circumstances.

It is a temporary, exceptional, God-commanded provision for population survival.

Nothing in the Book of Mormon teaches plural marriage as a path to righteousness or glory.

The Narrative Example: Abinadi Confronts Polygamist Priests

The clearest narrative example of polygamy in the Book of Mormon comes from the story of King Noah and his priests. Their marriages reveal:

• exploitation,
• coercion,
• indulgence,
• and spiritual corruption.

Mosiah 11:2

“He had many wives and concubines.”

Mosiah 11:4–5

King Noah and his priests lived in physical indulgence and taxed the people heavily to support their lifestyle.

Mosiah 12–13

When Abinadi appears, he rebukes them for:

• misusing God’s word,
• committing “whoredoms” (Mosiah 11:14),
• turning the law of Moses into license,
• breaking the commandments they outwardly claimed to uphold.

Abinadi’s confrontation is not simply about doctrinal purity—it is about defending the oppressed. In a society where wives became property and concubines existed to satisfy desire, righteousness had collapsed.

Abinadi’s message fits perfectly with Jacob’s later revelation:

• Polygamy is abominable.
• It harms women.
• It corrupts priesthood authority.
• It destroys societies spiritually and structurally.

The Book of Mormon uses Noah’s kingdom as a case study of what happens when men justify plural wives for self-serving purposes 

4Alma the Elder: A Righteous Man Raised Up From a Corrupt Polygamist System

One of the striking outcomes of Abinadi’s ministry is the emergence of Alma the Elder, who flees Noah’s corrupt court and becomes a spiritual reformer.

• Alma leaves behind the system of forced or exploitative plural marriage.
• He establishes a new community based on covenant purity and equality.
• He teaches the people to “have no respect to persons” (Mosiah 18:26).
• His family line—Alma, Helaman, Shiblon, Corianton—are all monogamous.

In other words:

• polygamy marks the wicked regime,
  monogamy marks the righteous reform.

Alma symbolically restores the marriage standard Noah’s court had abandoned.

The Rest of the Book of Mormon Models Monogamy

After Abinadi and Jacob, the Book of Mormon’s family structures are uniformly monogamous:

• Nephi and his brothers marry one family each (1 Nephi 16; 2 Nephi 5).
• Mosiah’s sons are raised in monogamous households.
• Alma’s family is monogamous.
• Mormon and Moroni describe society in collapse, but not polygamy.
• The Jaredite record treats “many wives and concubines” as a sign of evil (Ether 10:5).

There is not a single example of a righteous Book of Mormon prophet practicing or teaching plural marriage.

The Book of Mormon’s Teaching Matches the New Testament and Joseph Smith’s Lifetime Teachings

Together, the Book of Mormon, New Testament, and Joseph Smith’s own public ministry teach the same pattern:

• Adam and Eve: one flesh (Genesis 2)
• Jesus: “they two” (Matthew 19)
• Paul: “husband of one wife” (1 Timothy 3)
• Jacob: “one wife, concubines none” (Jacob 2)
• Abinadi: condemns a corrupt plural-marriage culture
• Joseph Smith (during life): denies polygamy repeatedly, disciplines offenders, affirms monogamy

These are not isolated teachings—they form a single, coherent scriptural line.

Conclusion: The Book of Mormon Stands Firmly for Monogamy

Far from giving scriptural justification for plural marriage, the Book of Mormon does the opposite:

• It denounces it through Jacob.
• It exposes its abuses through Abinadi.
• It contrasts wicked polygamous priests with righteous monogamous prophets.
• It holds up one man and one woman as God’s law.

The Book of Mormon restores the Edenic ideal and echoes Christ’s own teaching:

• marriage is a covenant between one man and one woman, united before God.

This is the doctrine taught in the text that Joseph Smith translated.
And it aligns perfectly with what he publicly taught during his lifetime.