Book of Mormon Commentary - Mosiah 14 Isaiah 53

But the condescension of God is not found in that Christ was born as man, but rather in that particular mission that he was selected to perform. That is, as the creator of the Second Estate, and as the leading Firstborn and heir of the Father in the spririt, it was his responsibility to redeem that which he had created. The condescension of God was that he would take upon himself the sins of mankind, the sins of the Second Estate, the sins of all he had created and give himself to be an infinite, divine and eternal sacrifice for them. He not only fell as Adam and other had, but he descended below all things, to the very depths in order to perform his mission of redemption. He was not 'perfected' in the sense that the Father stood as a celestial being, but his redemptive power was that he was a guiltless, a sinless, an unspotted sacrifice for sin. He only was justified in and of himself for he had not sinned and come under the penalty of the justice of God. Yet he took upon himself the sins of all, suffering for all sin, a sinless sacrifice for sin, thus satisfying the justice of God, that we might be redeemed through him and cleansed of our carnal and natural man condition. He was the son of Mary which allowed him the ability to die a mortal death. He was the Only Begotten Son of the Father, which gaven him the ability to resurrect or live again, thus opening the way through his atonement, justifying all who would come unto him and receive of his grace and mercy unto salvation, that all might live again through him and be able to then be judged according to their works.