The greatest theologian of the Antioch school was Theodore of Mopsuestia, bishop of Antioch for 36 years until his death in 428.67 Theodore emphasized Jesus’ full humanity against Apollinaris. The Logos was not subject to Jesus’ human limitations. It became incarnate in Jesus by uniting itself to him at his conception and indwelling his person. This indwelling of the Logos in Jesus was continuous with the inspiration experienced by prophets and others before him but distinct in degree. Jesus’ resurrection revealed that the Logos and his person had always been a functional unity.68 For Theodore this was a moral unity occurring in the conjunction of their wills. The second person of the Trinity became incarnate in Jesus through Jesus continually choosing to follow the former’s inspiration. This was made possible by the special indwelling of the Logos, but it only happened through the decision making of the human being Jesus. Theodore’s focus was on the particular life and achievement of the individual Jesus who at times struggled to overcome temptation and follow God’s will. This was essential to his triumph over sin and evil. The whole of Jesus’ life and public ministry has redemptive significance. It culminates in his resurrection, in which the power of sin and death are broken in principle as a result of his moral obedience, achieved through the indwelling of the Logos and the “active agency” of Jesus’ humanity.69
Theodore insisted against Apollinaris that Jesus was only able to effect salvation because he had been fully human and lived a genuinely human life. But Theodore’s account of the unity of the Logos with Jesus’ humanity remains problematic. For Theodore and others in the school of Antioch there seem to be two subjects in the one person of Jesus Christ. The Logos inspires Jesus and identifies with him in his resurrection, but this was a functional unity. The danger here is that Jesus becomes only a moral hero rather than the person in whom a new reality appears within history, in which God and humanity exist in a reconciled and new state of differentiated unity. Jesus can only be the Christ if he is a moral exemplar. But as the Christ he is not simply a great person but a new person, in whom a new reality is present in which others can participate through faith and in him. Theodore and the school of Antioch celebrated the arrival of this new reality in Jesus but had difficulty conceptualizing the unity of his person.
The leading theologian of the Alexandrian school was Cyril of Alexandria (378–444), bishop of Alexandria for 32 years. Cyril followed the Logos/sarx way of understanding Jesus’ person70 but insisted on the fullness of Jesus’ humanity. The unity of Jesus’ person is central for Cyril. For him the “Gospels bear witness that there is one subject or person in Christ.”71 This person resulted from the Logos uniting itself to a human nature so that the two became one concrete reality. This happened through the initiative of the Logos. For Cyril Jesus is fully human but not simply human. He is a divine person, the second person of the Trinity, who chose “to live in the human condition.”72 The line of interpretation he follows stresses the newness and uniqueness of Christ73 and the freedom of God to act creatively to rescue humanity from sin and evil. With Jesus the Logos has entered history in a new way, becoming incarnate in Jesus’ person. The Logos did not change in this but did something new. It became the active subject of a human life.74 The result was an “indissoluble union”75 of two distinct natures, an ontological rather than a functional or moral unity. Cyril conceives it as occurring more on the level of being than will.
How was this union effected? This was a mystery.76 But Cyril conceived it as the paradigm of the salvation it effects. Cyril understood salvation as divinization, the transformation of humanity through union with God so as to no longer be vulnerable to sin and death. This was effected by Christ taking “what was ours to be his very own so that we might have all that was his.”77 The incarnation happens by the creative power of the Logos healing the humanity it took on as it assumed it, so that the two were able to become one in Jesus’ person while remaining distinct. As a result Jesus’ person becomes the paradigm of the fullness of humanity. By assuming human nature the Logos is able to experience the human condition, including suffering. Cyril is careful to affirm that Jesus suffered in his human nature. The divine Logos did not change even while experiencing suffering through being incarnate in Jesus.78 The Logos experienced sin and death in the humanity of Jesus and, by virtue of its impassible divine nature, overcame these in the resurrection.79 The transformation of this one concrete instance of humanity, revealed in Jesus’ resurrection, reveals the transformation that as a result will be the future of all humanity. Salvation is “an ontological rescue of the race,”80 effected by the Logos becoming incarnate.
Cyril took seriously “what Christ had done as man”81 during his ministry and death, but the danger in the Logos/sarx approach he followed is that while the full humanity of Jesus is affirmed in principle, it tends to be curtailed by the emphasis on the Logos as the sole subject of his person. It is difficult to find room in this understanding for the fear and temptation that the Gospels report Jesus suffered.
The schools of Antioch and Alexandria both affirmed that in Jesus’ person the Logos and Jesus’ humanity were united in a unique way that has saving significance for all people. Each approach has contemporary representatives. Karl Rahner and Roger Haight follow Theodore in emphasizing that the incarnation occurred through the indwelling of the Word in Jesus’ person.82 Cyril’s emphasis that in Jesus the Logos experienced human suffering was radicalized by Jürgen Moltmann in his theology of the cross.83
The controversy