Second Lecture

This was the case with the Gnostics: they did not come to physical existence, to material existence. And if you now look at a person like Marcion, you see: for him there is a clear, a more or less clear concept of Christ, but he is absolutely unable to grasp how this Christ was contained in Jesus. Therefore, the whole process became etherealized for him. He managed to grasp the Christ as a spirit, as an ethereal being that seemingly took on a body. But he could not grasp the correct way in which the Christ was in Jesus. Marcion came to say, in the end, that Christ did indeed descend to earth, but that everything that Jesus experienced was only seemingly experienced; the physical events are only seemingly experienced; the Christ did not actually participate, but was only there like an ethereal entity, which, however, remained quite separate. That is why Tertullian had to turn against Marcion and against the others who thought similarly, Basilides for example. And for him the great riddle arose: How was the divine nature of Christ connected with the human nature of Jesus? What exactly was the God-man? What was the Son of God? What was the Son of Man? — Above all, he sought to clarify these concepts. And so he first formed a concept that was very important and is still important today, which one must understand if one wants to see how manifold the possibilities of error are for man.