Seminary
Genesis 15–18; 21: “The Lord Did … as He Had Spoken”


“Genesis 15–18; 21: ‘The Lord Did … as He Had Spoken,’” Old Testament Seminary Teacher Manual (2026)

“Genesis 15–18; 21: ‘The Lord Did … as He Had Spoken,’” Old Testament Seminary Teacher Manual

Genesis 18–23: Lesson 25

Genesis 15–18; 21

“The Lord Did … as He Had Spoken”

Sarah holds a baby Isaac in her arms. She looks down at him and smiles.

The Lord has made glorious promises to the faithful, but sometimes the circumstances of our lives can lead us to wonder how these promises can possibly be fulfilled. Abraham and Sarah may have felt that way after the Lord promised in their old age that Sarah would have a child. This lesson can help students increase their trust that the Lord will keep His promises.

Student preparation: Invite students to memorize and reflect on the first line found in Genesis 18:14: “Is any thing too hard for the Lord?” You could encourage them to think of times they have seen the Lord accomplish seemingly impossible things in the scriptures, their own lives, or the lives of others.

Possible Learning Activities

The Lord’s promises to us

Display the following scenarios to illustrate why a person might question whether God will keep His promises. For another scenario, you could watch “Continue in Patience” (2:41), from time code 1:07 to 1:55. This video is available at ChurchofJesusChrist.org. You could also invite students to create their own, similar scenarios.

2:42
  1. A young woman has chosen to be honest in her schoolwork, believing the Lord will bless her. She notices her grades are worse than other students who are cheating.

  2. A young man received his patriarchal blessing, which states that he will serve a full-time mission. During a medical exam, doctors discover he has physical complications that will not allow him to serve.

  3. A young woman has put Moroni’s promise to the test by reading the Book of Mormon and praying to know that it is true. She feels she has not received an answer.

    • What are some questions these young people might have about God and His promises?

Invite students to think of situations in which they or people they know could have a difficult time seeing how the Lord will fulfill promised blessings. Consider inviting students to write about these situations in their study journals. They might also write any questions they have.

Encourage students to put forth effort that can invite the Holy Ghost into their learning. Testify that as they do so, the Holy Ghost can help them find answers to their questions and increase their trust that the Lord will fulfill His promises.

The Lord’s promises to Abraham and Sarah

As students study the account of Sarah and Abraham, you could help them practice reading the scriptures within the appropriate context. The following paragraph can introduce students to this skill:

As we study the scriptures, it can be helpful to understand the context (circumstances or background surrounding a particular passage). The context can clarify and bring a deeper understanding to the stories or teachings in the scriptures. For example, while studying the story of Abraham and Sarah, it can be helpful to know that for much of his life, Abraham desired to be a father (see Abraham 1:2). But as he and his wife Sarah aged past normal childbearing years, it appeared that they would not experience the promised blessings of having children of their own during their mortal lives.

seminary icon The handout titled “The Lord’s Promises to Abraham and Sarah” can help students practice using context to better understand what they are reading in the scriptures. You could model this by studying Genesis 15:1–6 as a class. You could then place students in small groups to study the other verses.

Before students study, you might explain that as part of His covenant with Abram and Sarai, the Lord changed their names to Abraham and Sarah (see Genesis 17:5, 15). You could also explain that the word laugh in Genesis 17:17; 18:12; and 21:6 comes from the Hebrew root tzachak, which can also mean “to rejoice” (see also Joseph Smith Translation, Genesis 17:23).

2026 Old Testament Seminary Teacher Materials

After students have studied and discussed with their groups, consider inviting a few volunteers to share their insights with the class. You could then ask the following questions:

  • How do you feel the context helped you understand what you studied?

  • How might you have felt if you had experienced what Abraham and Sarah did in these verses?

The Lord keeps His promises

Read Genesis 21:1–6, looking for how the Lord kept His promises to Abraham and Sarah.

  • What truths do you learn about the Lord from this account?

seminary iconWhen students state converting principles in their own words, it can deepen their understanding of the scriptures and the words of the prophets. Sometimes students may struggle to identify truths from a scripture passage. Providing a prophetic statement like the following can help clarify what they are learning and help them be successful in stating truths. (For additional training on helping students state converting principles, see “Focus on truths that lead to conversion and build faith in Jesus Christ” in Teacher Development Skills.)

President Dieter F. Uchtdorf, then of the First Presidency, shared a lesson he learned about God’s promises:

Official portrait of Elder Dieter F. Uchtdorf of the Quorum of the Twelve Apostles, 2006.Called as Second Counselor in the First Presidency, 3 February 2008.Made official portrait in 2008 replacing portrait taken in 2004.

God’s promises are not always fulfilled as quickly as or in the way we might hope; they come according to His timing and in His ways. (“Continue in Patience,” Ensign or Liahona, May 2010, 58)

One truth students could identify is that the Lord fulfills His promises in His time and in His way.

  • How can we benefit from times when the Lord’s promises are not immediately fulfilled in our lives?

  • What do you know about the Lord that could help you while you wait for His promises to be fulfilled?

Students might benefit by looking for scriptures about the Lord that could help them answer the previous question. Possible passages could include John 14:18; 1 Nephi 9:6; Mosiah 24:14; Doctrine and Covenants 24:8; 68:6.

Experiences and testimonies

To help students reflect on what they have learned, consider displaying the following statement or watching “Good Things to Come” (4:55), available at ChurchofJesusChrist.org. Invite students to think of personal experiences that could relate to the statement or video.

4:55

President Jeffrey R. Holland of the Quorum of the Twelve Apostles shared the following insight about the Lord’s promised blessings:

Official Portrait of Elder Jeffrey R. Holland.  Photographed January 2018.

Some blessings come soon, some come late, and some don’t come until heaven; but for those who embrace the gospel of Jesus Christ, they come. (“An High Priest of Good Things to Come,” Ensign, Nov. 1999, 38)

  • What experiences have you or others had that have helped you believe that the Lord will keep His promises in His way and in His time?

Prepare students to testify of the truths they have learned or felt. You could do this by displaying the following instructions:

Choose one of the following activities to complete in your study journal:

  1. Reflect on the scenarios that were shared at the beginning of the lesson. Write a letter to one of those individuals, and include why you believe the Lord will keep His promises.

  2. Write a short paragraph in your journal. Include things you have learned and felt today that could help you when you are waiting for the Lord’s promises to be fulfilled.

Invite a few volunteers to share their feelings with the class. You could conclude by sharing your witness that the Lord will keep His promises.