The following questions and answers that relate to Isaiah 11:1-10 (and thus to 2 Nephi 21:1-10) are included in section 113 of the Doctrine and Covenants:
Who is the Stem of Jesse spoken of in the 1st, 2nd, 3rd, 4th and 5th verses of the 11th chapter of Isaiah?Verily thus saith the Lord: It is Christ.
What is the rod spoken of in the first verse of the 11th chapter of Isaiah, that should come of the Stem of Jesse?
Behold, thus saith the Lord: It is a servant in the hands of Christ, who is partly a descendant of Jesse as well as of Ephraim, or of the house of Joseph, on whom there is laid much power.
What is the root of Jesse spoken of in the 10th verse of the 11th chapter?
Behold, thus saith the Lord, it is a descendant of Jesse, as well as of Joseph, unto whom rightly belongs the priesthood, and the keys of the kingdom, for an ensign, and for the gathering of my people in the last days.