1 Nephi 11

As I have read the 11th Chapter of 1 Nephi in the past, I have wondered who the "Spirit of the Lord" was, whether it was the pre-mortal spirit of Christ or the Holy Ghost where Nephi mentions -

"...for I spake unto him as a man speaketh; for I beheld that he was in the form of a man; yet nevertheless, I knew that it was the Spirit of the Lord; and he spake unto me as a man speaketh with another."  (Book of Mormon | 1 Nephi 11:11)

Elder James E. Talmage commented -

“The Holy Ghost, called also Spirit, and Spirit of the Lord, Spirit of God, Comforter, and Spirit of Truth, is not tabernacled in a body of flesh and bones, but is a personage of spirit; yet we know that the Spirit has manifested Himself in the form of a man (see 1 Nephi 11:11)” (James E. Talmage, Articles of Faith. Salt Lake City: Deseret Book Co. 1981, 38.)

I also have found it interesting that the words "condescension of God" is used twice in this chapter.  Elder Bruce R. McConkie taught -

“The condescension of God (verse 16) (meaning the Father) consists in the fact that though he is an exalted, perfected, glorified Personage, he became the personal and literal Father of a mortal Offspring born of mortal woman. And the condescension of God (verse 26)—meaning the Son—consists in the fact that though he himself is the Lord Omnipotent, the very Being who created the earth and all things that in it are, yet being born of mortal woman, he submitted to all the trials of mortality, suffering ‘temptations, and pain of body, hunger, thirst, and fatigue, even more than man can suffer, except it be unto death’ (Mosiah 3:5–8), finally being put to death in a most ignominious manner.” (Mormon Doctrine, p. 155—as quoted in the new, smaller, 1989 edition, Book of Mormon Manual, p. 32.)

So the condescension of God can be in reference to both God the Father and Jesus Christ.