"Jesus was the son of Mary, a mortal woman. And he was the son of Elohim, the Eternal Father. He was not the son of the Holy Ghost, as some have supposed from the New Testament account (Matthew 1:18). 'If [the New Testament passage] is interpreted to mean that the Holy Ghost is the Father of our Lord,' Elder Bruce R. McConkie has written, 'we can only say the record has come down to us in a corrupted form, for the Holy Spirit and the Father are two separate personages. But providentially there are parallel passages that clarify and expand upon the paternity of Him whom Mary bore.' These passages are, of course, in the Book of Mormon, particularly here in Alma 7. Continuing, Elder McConkie stated:
"Jesus, thus, is the Son of God, not of the Holy Ghost, and properly speaking Mary was with child 'by the power of the Holy Ghost,' rather than 'of the Holy Ghost,' and she was, of course, 'overshadowed' by the Holy Spirit, in a way incomprehensible to us, when the miraculous conception took place." (Promised Messiah, pp. 463-64; see also Mortal Messiah 1:314-15.)
(McConkie and Millet, Doctrinal Commentary on the Book of Mormon, vol. 3, p. 51)