Third Nephi follows Matthew’s sermon closely. The visit also describes the risen Jesus showing His wounds, healing people, blessing children, giving the sacrament, and explaining how He fulfilled the law of Moses. The distinct content and the source of the shared English wording are separate questions.
Third Nephi 12–14 closely follows Matthew 5–7. The visit itself includes Jesus showing His wounds, healing the sick, blessing children, and giving the sacrament. The sermon also changes some wording to fit the setting after His resurrection. The differences answer the claim that the visit adds nothing. The shared wording and order still raise a separate question about how the English text came to be.
In a Mormon Stories interview, Jared Smith says the visit did little to make the book feel like another testament of Jesus. When Nemo mentions the repeated Sermon on the Mount, Smith calls it “literally copied and pasted.” The conversation raises two questions worth separating. What does the account add to the New Testament story, and how did the sermon get its English wording and order? Mormon Stories interview, 1:32:48–1:34:57
Read the three chapter pairs. Matthew 5 and 3 Nephi 12 move from blessings to the law and commands such as loving enemies. Matthew 6 and 3 Nephi 13 cover giving, prayer, fasting, and priorities. Matthew 7 and 3 Nephi 14 cover judgment and end with the two builders. The shared order goes beyond two speakers teaching the same basic principles. Matthew 5–7 · 3 Nephi 12–14
The Golden Rule is a good test. Matthew 7:12 and 3 Nephi 14:12 give the same rule in essentially the same English and both connect it to “the law and the prophets.” Luke 6:31 gives the rule in shorter wording and without that closing clause. Ronald V. Huggins points to this and the larger sequence. He argues that Matthew arranged earlier material into this form, making the same arrangement in 3 Nephi evidence of dependence on Matthew. The parallel is visible in the texts. His conclusion about its origin depends on how Matthew acquired and arranged the material and how the English Book of Mormon was produced. Matthew 7:12 · 3 Nephi 14:12 · Luke 6:31 · Huggins, pp. 137–148
The law’s fulfillment. In Matthew 5:17–18, Jesus announces His purpose to fulfill the law and prophets. In 3 Nephi 12:17–18, He says the law has been fulfilled in Him. In 3 Nephi 15:4–8, He explains what He means. The law given to Moses has reached its end in Him. God’s covenant with Israel and the promises still to come continue to matter. Matthew 5:17–18 · 3 Nephi 12:17–19 · 3 Nephi 15:4–10
The example of perfection. Matthew 5:48 names the Father as the example. In 3 Nephi 12:48, the risen Jesus also includes Himself, saying “even as I, or your Father.” Krister Stendahl identifies that addition as a change in emphasis toward Christ Himself. It fits the role Jesus takes in the Bountiful narrative. Matthew 5:48 · 3 Nephi 12:48 · Stendahl’s comparison
If the question is whether the book gives Jesus anything else to do or say, read the episodes and changes above. They add substance. If the question is whether the wording and arrangement reflect Matthew, take that evidence seriously as well. A modern author could adapt Matthew to a new setting. A Latter-day Saint translation account could also allow the English rendering of related teachings to draw on familiar biblical language and form. Repeated teaching by Jesus could explain common themes. The close sequence and wording still need an explanation under any account.
I believe the risen Christ ministered at Bountiful. The account’s distinctive treatment of His resurrection and Israel’s covenant helps explain why Latter-day Saints read it as another testament. Those features are worth reading in their own right. Establishing when and how the account originated calls for historical and textual evidence beyond the fact that it contains both parallels and differences. The King James wording question · The specific JST comparison
