Most readers of the Book of Mormon can repeat Nephi’s familiar statement, "I will go and do the things which the Lord hath commanded." It has a good rhythm to it. It’s beautifully memorable. In English it works wonderfully. It is a real gem of confession and profession of faith and faithfulness. But readers should not forget this verse’s almost-always-overlooked partner: 1 Nephi 17:3 is a structural counterpart and an echo of Nephi’s original statement in 1 Nephi 3:7.
Now out in the wilderness with his entire family, Nephi states, "And thus we see that the commandments of God must be filled. And if it be so that the children of men keep the commandments of God, he doth nourish and provide strength and strengthen them and provide a means [compare prepare a way] whereby they can accomplish the thing which he has commanded them" (1 Nephi 17:3). A similar expression also shows up in Sariah’s words as well: "I know of a surety that the Lord hath … hath given them power whereby they could accomplish the thing which the Lord hath commanded them" (see 1 Nephi 5:8). These strongly affirming words were a standard watchword for Nephi and his faithful family members throughout their arduous experiences in the desert.
Book of Mormon Central, "Why Did Nephi Believe the Lord Would Prepare a Way? (1 Nephi 3:7)," KnoWhy 263 (January 18, 2017).