Jesus Christ is the son of God

An apostle and prophet, Spencer W. Kimball, bore witness that Jesus Christ was the God of the Old Testament. He said, "It was He who conversed with Abraham and Moses. It was He who inspired Isaiah and Jeremiah; it was He who foretold through those chosen men the happenings of the future, even to the latest day and hour." He is the great Jehovah and his father is the holy Elohim, our Heavenly Father.

At the time of the tower of Babel, in response to a prayer of faith, Jesus Christ, as Jehovah, appeared to the brother of Jared, as described in the 3rd chapter of Ether in the Book of Mormon (http://scriptures.lds.org/). This what the Savior told the brother of Jared.

14 Behold, I am he who was prepared from the foundation of the world to redeem my people. Behold, I am Jesus Christ. I am the Father and the Son. In me shall all mankind have life, and that eternally, even they who shall believe on my name; and they shall become my sons and my daughters.

15 And never have I showed myself unto man whom I have created, for never has man believed in me as thou hast. Seest thou that ye are created after mine own image? Yea, even all men were created in the beginning after mine own image.

16 Behold, this body, which ye now behold, is the body of my spirit; and man have I created after the body of my spirit; and even as I appear unto thee to be in the spirit will I appear unto my people in the flesh.

Heavenly Father introduced Jesus Christ, our Savior, on at least four occasions, once to surprised listeners at Jordan (see Matt. 3:13-17), at the Mount of Transfiguration (see Matt. 17:1-9), at the temple of the Nephites (see 3 Ne. 11-26), and in the grove at Palmyra, New York [see Joseph Smith-History 1:17-25]. At each of these times the Father testified that Jesus is his son. He declared, "This is my son, in whom I am well pleased."

There can be no greater testimony than that of the Father, witnessing that Jesus Christ is His son.