Seminary
Alma 39: “Cross Yourself in These Things”


“Alma 39: ‘Cross Yourself in These Things,’” Book of Mormon Teacher Manual (2024)

“Alma 39,” Book of Mormon Teacher Manual

Alma 39

“Cross Yourself in These Things”

Alma talking to Corianton

Throughout time, Satan has led many people to believe that sexual relations outside of marriage are acceptable. Heavenly Father and Jesus Christ have given us the law of chastity for our protection, peace, and happiness. The prophet Alma lovingly counseled his son Corianton to forsake and repent of his sins, including a violation of the law of chastity. This lesson can help you understand the seriousness of sexual sin and how to resist the temptation to break the law of chastity.

Help learners understand and seek conversion. Conversion is a continuing process of change and spiritual development that we demonstrate by righteous efforts throughout our lives. Look for opportunities to provide experiences where students can come to know, love, and follow Jesus Christ and His restored gospel.

Student preparation: Invite students to think about what they know about the law of chastity, how they feel about it, and any questions they may have.

Possible Learning Activities

The law of chastity

Consider writing the following statements on the board. Change or add statements that may better prepare your students to learn about the law of chastity.

Read the following statements and determine which of the following best represents your feelings:

  • I disagree

  • I mostly disagree

  • I mostly agree

  • I agree

  1. Youth in The Church of Jesus Christ of Latter-day Saints clearly understand the law of chastity, or the Lord’s law of sexual purity.

  2. They understand why it matters and why the Lord wants us to live it.

  3. It can be difficult to keep the law of chastity in the world today.

  4. Youth in the Church know how to resist temptation and keep themselves sexually pure.

Invite students to share whether they agreed or disagreed with the statements above and why.

The law of chastity is the Lord’s law of sexual purity. Obeying the law of chastity means keeping yourself clean in thought, word, and action, including staying away from anything pornographic. It also means avoiding any sexual relations before marriage and being completely faithful to your wife or husband during marriage. “Like other violations of the law of chastity, homosexual activity is a serious sin. It is contrary to the purposes of human sexuality” (Gospel Topics, “Chastity,” topics.ChurchofJesusChrist.org).

Take a moment to ponder your understanding and feelings about the law of chastity. What questions do you have? Why does it matter to you? What temptations regarding chastity do you face? As you study this lesson, search for answers to your questions and for help to overcome your temptations.

Alma counsels his son Corianton

Alma 39 is the first of four chapters containing counsel, commandments, and teachings from Alma to his son Corianton. Corianton had accompanied his father and brother Shiblon to preach the gospel among the Zoramites. During this mission, however, Corianton committed some serious sins.

Read Alma 39:1–5, looking for mistakes Corianton made and how Alma and the Lord felt about them. (The word harlot in verse 3 refers to an immoral woman or prostitute.)

Invite students to share scriptural words or phrases that indicate what Corianton did and how Alma and the Lord felt about it.

To help you ponder why breaking the law of chastity is “grievous” unto a father and a prophet (Alma 39:3) and an “abomination in the sight of the Lord” (Alma 39:5), it can be helpful to understand the blessings of keeping it. Read the promised blessings in the section “Your Body Is Sacred” in For the Strength of Youth: A Guide for Making Choices (booklet, 2022).

Allow students to share what they found.

  • How does keeping the law of chastity prepare us to receive great blessings from the Lord in this life and the next?

Consider listing the following two questions on the board and inviting students to work in pairs or small groups to find answers in the scriptures. Then discuss the next two questions as a class.

  • What will happen if a person does not repent of sexual sin? (Alma 39:7–9)

  • What is an often-overlooked consequence of breaking the law of chastity? (Alma 39:11–13)

  • Based on what you learned, why might a parent, prophet, and the Lord have such strong feelings about chastity?

  • How does the law of chastity show God’s love for His children?

“Go no more after the lusts of your eyes”

In addition to teaching his son about the seriousness of sexual sin, Alma also taught Corianton how to avoid making the same mistakes in the future.

Review Alma 39:9 and Alma 39:13, looking for words or phrases that can help you resist temptation and keep the law of chastity. (The phrase “cross yourself” in verse 9 means to exercise self-control or self-mastery.)

Alma 39:9 is a doctrinal mastery passage. Consider marking doctrinal mastery passages in a distinctive way so you can locate them easily. You will have an opportunity in the next lesson to practice applying the doctrine taught in this passage to a question or situation.

Invite students to share what they found.

  • What principle did Alma teach Corianton in these verses?

One possible principle from these verses is that as we exercise self-control and turn to the Lord, we can overcome the temptation to violate God’s law of chastity.

Exercising self-control and turning to the Lord to overcome temptation can sometimes be difficult. It can help to think of a variety of ways to do this and then follow promptings from the Spirit about what would be most helpful for you.

Before doing the following activity, consider inviting youth to brainstorm ways they can turn to the Lord and overcome temptations to break the law of chastity. They can then do two of the following to confirm or add to their ideas.

Consider listing the following on the board. Consider removing the video from the list and asking the class after their study if they would like to watch it.

  1. Read the counsel in “Your Body Is Sacred” in the For the Strength of Youth booklet. For additional counsel from members of the Quorum of the Twelve Apostles, consider reading “Personal Purity” (Jeffrey R. Holland, Ensign, Nov. 1998, 75–78) or “We Believe in Being Chaste” (David A. Bednar, Ensign or Liahona, May 2013, 41–44).

  2. Find scriptures you feel could strengthen you against temptations to break the law of chastity. You can also list hymns, or Primary songs you may want to turn to for strength when tempted.

  3. List ways you could strive to “turn to the Lord” with your “mind, might, and strength” (Alms 39:13). Include what you have done in the past that you feel has strengthened you.

  4. Write down counsel you have received from parents and Church leaders that could help you against temptation.

  5. Watch the video “Chastity: What are the Limits?” (3:59), available at ChurchofJesusChrist.org.

    3:59

    Chastity: What Are the Limits?

    Latter-day Saint teens are counseled to stay sexually pure, but what exactly are the limits? Using teachings of modern prophets, this presentation shows how we can find happiness and peace through staying chaste.

After several minutes, consider inviting multiple students to share their ideas and how these ideas may help them overcome temptation. If you feel your class may struggle to openly discuss this subject, invite students to share their thoughts anonymously on a piece of paper. Gather the papers together and read them to the class.

Personal reflection

Take a moment to ponder why you want to stay sexually pure. Then record the steps you will take to continually obey the Lord’s law of chastity. Consider what the Holy Ghost may have inspired you to do, and record any additional thoughts in your study journal. If you or someone you know has broken the law of chastity, remember that Jesus Christ has “come to take away the sins of the world” (Alma 39:15) and will forgive all who sincerely repent and forsake their sins (see Mosiah 26:30, Alma 39:9).

Consider bearing your testimony.