The Best of Greek Thought Is "An Integral Part of Christian Faith"
Lecture given by the pope on the afternoon of Tuesday, September 12, 2006, in the main hall of the University of Regensburg.
by Benedict XVI

I was reminded of all this recently, when I read the edition by Professor Theodore Khoury (Münster) of part of the dialogue carried on - perhaps in 1391 in the winter barracks near Ankara - by the erudite Byzantine emperor Manuel II Paleologus and an educated Persian on the subject of Christianity and Islam, and the truth of both. It was probably the emperor himself who set down this dialogue, during the siege of Constantinople between 1394 and 1402; and this would explain why his arguments are given in greater detail than the responses of the learned Persian. The dialogue ranges widely over the structures of faith contained in the Bible and in the Qur’an, and deals especially with the image of God and of man, while necessarily returning repeatedly to the relationship of the "three Laws": the Old Testament, the New Testament and the Qur’an.
In the seventh conversation-controversy, edited by Professor Khoury, the emperor touches on the theme of the jihad (holy war). The emperor must have known that surah 2, 256 reads: "There is no compulsion in religion". It is one of the suras of the early period, when Mohammed was still powerless and under threats. But naturally the emperor also knew the instructions, developed later and recorded in the Qur’an, concerning holy war. Without decending to details, such as the difference in treatment accorded to those who have the "Book" and the "infidels", he turns to his interlocutor somewhat brusquely with the central question on the relationship between religion and violence in general, in these words: "Show me just what Mohammed brought that was new, and there you will find things only evil and inhuman, such as his command to spread by the sword the faith he preached". The emperor goes on to explain in detail the reasons why spreading the faith through violence is something unreasonable. Violence is incompatible with the nature of God and the nature of the soul. "God is not pleased by blood, and not acting reasonably is contrary to God’s nature. Faith is born of the soul, not the body. Whoever would lead someone to faith needs the ability to speak well and to reason properly, without violence and threats... To convince a reasonable soul, one does not need a strong arm, or weapons of any kind, or any other means of threatening a person with death...".

The decisive statement in this argument against violent conversion is this: not to act in accordance with reason is contrary to God’s nature. The editor, Theodore Khoury, observes: For the emperor, as a Byzantine shaped by Greek philosophy, this statement is self-evident. But for Muslim teaching, God is absolutely transcendent. His will is not bound up with any of our categories, even that of rationality. Here Khoury quotes a work of the noted French Islamist R. Arnaldez, who points out that Ibn Hazn went so far as to state that God is not bound even by his own word, and that nothing would oblige him to reveal the truth to us. Were it God’s will, we would even have to practise idolatry. even that of rationality. As far as understanding of God and thus the concrete practice of religion is concerned, we find ourselves faced with a dilemma which nowadays challenges us directly. Is the conviction that acting unreasonably contradicts God’s nature merely a Greek idea, or is it always and intrinsically true? I believe that here we can see the profound harmony between what is Greek in the best sense of the word and the biblical understanding of faith in God. Modifying the first verse of the Book of Genesis, John began the prologue of his Gospel with the words: "In the beginning was the 'logos'". This is the very word used by the emperor: God acts with "logos." "Logos" means both reason and word – a reason which is creative and capable of self-communication, precisely as reason. John thus spoke the final word on the biblical concept of God, and in this word all the often toilsome and tortuous threads of biblical faith find their culmination and synthesis. In the beginning was the "logos," and the "logos" is God, says the Evangelist. The encounter between the Biblical message and Greek thought did not happen by chance. The vision of Saint Paul, who saw the roads to Asia barred and in a dream saw a Macedonian man plead with him: "Come over to Macedonia and help us!" (cf. Acts 16:6-10) – this vision can be interpreted as a "distillation" of the intrinsic necessity of a rapprochement between Biblical faith and Greek inquiry. heart of Greek thought now joined to faith, Manuel II was able to say: Not to act "with 'logos'" is contrary to God’s nature.

Beyond this is the realm of God’s freedom, in virtue of which he could have done the opposite of everything he has actually done. This gives rise to positions which clearly approach those of Ibn Hazn and might even lead to the image of a capricious God, who is not even bound to truth and goodness. God’s transcendence and otherness are so exalted that our reason, our sense of the true and good, are no longer an authentic mirror of God, whose deepest possibilities remain eternally unattainable and hidden behind his actual decisions. As opposed to this, the faith of the Church has always insisted that between God and us, between his eternal Creator Spirit and our created reason there exists a real analogy, in which unlikeness remains infinitely greater than likeness, yet not to the point of abolishing analogy and its language (cf. Lateran IV). God does not become more divine when we push him away from us in a sheer, impenetrable voluntarism; rather, the truly divine God is the God who has revealed himself as "logos" and, as "logos," has acted and continues to act lovingly on our behalf. Certainly, love "transcends" knowledge and is thereby capable of perceiving more than thought alone (cf. Eph 3:19); nonetheless it continues to be love of the God who is "logos." Consequently, Christian worship is "spiritual" worship in harmony with the eternal Word and with our reason (cf. Rom 12:1).