It is a hyperbole excusable in poetic language, but not scientifically valid, when he [Jesus] is identified with the ideal of humanity. The ideal is … - Otto Pfleiderer

The divine in Jesus does not denote a violent rupture of the course of human history with the exclusion of all causal connection and all human personality, but it lies at the basis of all this history from beginning to end; it dwells in it as the divine Logos, as the rational aptitude of human nature, as impulse to the true and good, as God-consciousness. All progress in the development of mankind from the lowest grades upward, every achievement of culture which makes rude nature the servant of reason, every formation of higher ethical ideals, and every clarifying and deepening of the God-consciousness, is an effect and a revelation of the divine Logos dwelling in our race.

The apostle Paul … was conscious of the new in his apprehension of the gospel over against the primitive Jewish-Christian Church, and based the right of his apostolic preaching not upon human tradition, but upon the revelation of the Spirit of Christ in his heart. ... The “Christ according to the Spirit,” as Paul preached him, was certainly not identical with the “Christ according to the flesh,” as he lived in the recollection of the Primitive Church. For Paul had stripped off the Jewish in this individual phenomenon, in order to bring forth and exalt as an object of faith to gentiles and Jews alike the universal religious principle alone. His Christ is the ideal Son of God, i.e. the personification of the religious idea as it lived in the soul of Jesus, of the love of God and men as it had been the impelling principle of his life-work.

The religious principle of Jesus was thus certainly freed by Paul from its original Jewish and national husk, but only to be immediately clothed again in a new supernaturalistic envelope, the origin of which likewise lay in the historically given ideas of Hellenism and Pharisaism. Therefore the Pauline Christ can just as little be for us a binding object of faith as the Jesus of history.