And my father dwelt in a tent. (1 Nephi 2: 15)
This odd verse has always amused me. Thank you Nephi for this important information. Then again, maybe this verse is more significant that it seems. I have always assumed that Nephi's purpose was simply to identify the nature of Lehi's wilderness abode. But now, I believe that I was wrong.
You see, we already know well that Lehi and his family were dwelling in tents. We were first informed in 1 Nephi 2: 4. Departing into the wilderness with his family, Lehi "took nothing with him, save it were his family, and provisions, and tents...."
And then again in 1 Nephi 2: 6, after traveling "three days in the wilderness, he pitched his tent in a valley by the side of a river of water." The family is still paused at this location, in the Valley of Lemuel, when Nephi makes the odd comment about his father dwelling in a tent.
So, why did he make that comment? In my opinion, it is simply a way of saying that time passed. My father did not just pitch his tent in the Valley of Lemuel; he also dwelt in it.
Moreover, this odd comment determines the setting for the next series of events. After stating that his father dwelt in a tent, Nephi begins in the very next verse to tell about his personal excursion away from that tent to draw close to the Lord.
And it came to pass that I, Nephi, being exceedingly young, nevertheless being large in stature, and also having great desires to know of the mysteries of God, wherefore, I did cry unto the Lord; and behold he did visit me, and did soften my heart that I did believe all the words which had been spoken by my father; wherefore, I did not rebel against him like unto my brothers. (1 Nephi 2: 16)
After receiving this spiritual witness, Nephi went directly to his brothers to tell them of his testimony. Sam believes (1 Nephi 2: 17) but Laman and Lemuel do not (1 Nephi 2: 18). So, Nephi goes off again to pray for his disbelieving brothers and the Lord speaks to him again.
When all this praying and revelation is finished, "Nephi returned from speaking with the Lord, to the tent of [his] father" (1 Nephi 3: 1). So, he has come full circle. I think that the first comment about his father dwelling in a tent is directly related to Nephi's return to that tent. This all happened in a short period of time, apparently during a single day.
Then again, Lehi has apparently been sleeping during Nephi's absence. His first words to Nephi upon Nephi's return are that he has "dreamed a dream" (1 Nephi 3: 2) in which the brothers are commanded to go back to Jerusalem to obtain brass plates from Laban. Perhaps Lehi was napping during the heat of the day, while Nephi was out and about seeking the Lord in prayer.
And finally, notice the significance of this circle of events leading back to the tent. Nephi's revelatory experiences--and his sharing them with his brothers--would have prepared them just in time for this new and difficult assignment. Nephi has gained a spiritual witness without which he might not have been prepared to obey his father on the most difficult assignment of his life -- an assignment that would soon result in Nephi taking Laban's life with the sword.