Christology has Christ for its subject. It means the doctrine about Christ. This will include a discussion of his nature, his person, his incarnation and the leading errors that developed on this subject during the centuries.

We have already discussed the nature of the Son of God as the Second Person of the Adorable Trinity, one with God, and eternally self-existent. This subject has to do with the Christ as He appeared on this planet, as He crossed the threshold of this world in the stable at Bethlehem, and toiled in the carpenter's shop in Nazareth, and stilled the waves of Galilee, and hung on the cross of Calvary and ascended to heaven on a stairway of clouds. What kind of a being was He? Was He truly a man? Was He very God? Was He God-man? Such questions crowd upon us for solution. It is one of the most vital questions of theology. The atonement, if I here be any, the manner of salvation, justification, regeneration, sanctification-all fall into line behind this subject like soldiers following their leader.