2 Nephi 2:1-4 I am enthralled with the notion that Jacob in his youth had come to know God by personal manifestation. His father, Lehi, is also aware of this and makes mention of it several times in these first verses. When we consider Jacob's position however, it was extremely appropriate that Jacob would be privileged to have such a personal manifestation. God reveals himself to his prophets, of whom Jacob eventually becomes one. Thus is the pattern of God. God then requires his prophets, those to whom he has revealed himself to testify of him. That is a weighty responsibility. Lehi gives him the perspective of that privilege by explaining that the Spirit is the same yesterday, today, and tomorrow. Thus what he had experienced put him on an equal plane as those who would walk with Christ in His mortal ministry. That is an important point.
A personal study of the Book of Mormon by Brent Leavitt,
a member of the Church of Jesus Christ of Latter-day Saints.