In 2nd Nephi 1, we learn it is wise to follow the prophet:
14 Awake! and arise from the dust, and hear the words of a trembling parent, whose limbs ye must soon lay down in the cold and silent grave, from whence no traveler can return; a few more days and I go the way of all the earth.
20 And he hath said that: Inasmuch as ye shall keep my commandments ye shall prosper in the land; but inasmuch as ye will not keep my commandments ye shall be cut off from my presence.
21 And now that my soul might have joy in you, and that my heart might leave this world with gladness because of you, that I might not be brought down with grief and sorrow to the grave, arise from the dust, my sons, and be men, and be determined in one mind and in one heart, united in all things, that ye may not come down into captivity;
28 And now my son, Laman, and also Lemuel and Sam, and also my sons who are the sons of Ishmael, behold, if ye will hearken unto the voice of Nephi ye shall not perish. And if ye will hearken unto him I leave unto you a blessing, yea, even my first blessing.