"The church of God, which he has purchased with his own blood." Acts 20:28
Atonement for sin stands or falls with the Deity of Christ. If we deny his Deity, we must deny the atonement, for what value or merit can there be in the blood of a mere man that God, for its sake, should pardon millions of sins? This the Socinians clearly see, and therefore deny the atonement altogether. But if there be no atonement, no sacrifice, no atoning sacrifice for sin, where can we look for pardon and peace? Whichever way we turn our eyes there is despair.
But when by the eye of faith we see the Son of God obeying the law, rendering, by doing and dying, acting and suffering, a satisfaction to the violated justice of the Most High and offering a sacrifice for sin, then we see such a glory and such a value breathing through every thought, word, and action of his suffering humanity, that we embrace him and all that he is and has, with every desire and affection of our regenerated soul. All our religion lies here; all our faith, hope, and love flow unto, and are, as it were, fixed and concentrated in Jesus Christ, and him crucified; and without a measure of this in our heart and conscience, we have no religion worth the name, nothing that either saves or sanctifies--nothing that delivers from the guilt, filth, love, power, and practice of sin--nothing that supports in life, comforts in death, or fits for eternity.
The way, then, whereby we come to a knowledge of, and a faith in, the Deity of Christ is first by feeling a need of all that he is as a Savior, and a great one, and then having a manifestation of him by the blessed Spirit to our soul. When he is thus revealed and brought near, we see, by the eye of faith, his pure and perfect humanity and his eternal Deity; and these two distinct natures we see combined, but not intermingled, in one glorious Person, Immanuel, God with us. Until thus favored we may see the Deity of Christ in the Scriptures, and have so far a belief in it, but we have not that personal appropriating faith whereby, with Thomas, we can say, "My Lord and my God."