A lecture by English convert to Islam, Abdal-Hakim Murad, given to a group of Christians in Oxford, 1996

A number of difficulties will beset any presentation of Muslim understandings of the Trinity. Not the least of these is the fact that these Muslim understandings have been almost as diverse and as numerous as those obtaining among Christian scholars themselves. It is true that medieval Islam knew much more about Christian doctrine than the doctors of the Church did about Islam, for the obvious reason that Muslim societies contained literate minorities with whom one could debate, something which was normally not the case in Christendom. Muslim-Christian dialogue, a novelty in the West, has a long history in the Middle East, going back at least as far as the polite debates between St John of Damascus and the Muslim scholars of seventh-century Syria. And yet reading our theologians one usually concludes that most of them never quite 'got' the point about the Trinity. Their analysis can usually be faulted on grounds not of unsophistication, but of insufficient familiarity with the complexities of Scholastic or Eastern trinitarian thinking. Often they merely tilt at windmills.

There were, I think, two reasons for this. Firstly, the doctrine of Trinity was the most notorious point at issue between Christianity and Islam, and hence was freighted with fierce passions. For the pre-modern Muslim mind, Christian invaders, crusaders, inquisitors and the rest were primarily obsessed with forcing the doctrine of Trinity on their hapless Muslim enemies. It is recalled even today among Muslims in Russia that when Ivan the Terrible captured Kazan, capital of the Volga Muslims, he told its people that they could escape the sword by 'praising with us the Most Blessed Trinity for generation unto generation.' Even today in Bosnia, Serb irregulars use the three-fingered Trinity salute as a gesture of defiance against their Muslim enemies. And so on. Much Muslim theologising about the Trinity has hence been set in a bitterly polemical context of fear and often outright hatred: the Trinity as the very symbol of the unknown but violent other lurking on the barbarous northern shores of the Mediterranean, scene of every kind of demonic wickedness and cruelty.

To this distortion one has to add, I think, some problems posed by the doctrine of the Trinity itself. Islam, while it has produced great thinkers, has nonetheless put fewer of its epistemological eggs in the theological basket than has Christianity. Reading Muslim presentations of the Trinity one cannot help but detect a sense of impatience. One of the virtues of the Semitic type of consciousness is the conviction that ultimate reality must be ultimately simple, and that the Nicene talk of a deity with three persons, one of whom has two natures, but who are all somehow reducible to authentic unity, quite apart from being rationally dubious, seems intuitively wrong. God, the final ground of all being, surely does not need to be so complicated.

These two obstacles to a correct understanding of the Trinity do to some extent persist even today. But a new obstacle has in the past century or so presented itself inasmuch as the old Western Christian consensus on what the Trinity meant, which was always a fragile consensus, no longer seems to obtain among many serious Christian scholars. Surveying the astonishing bulk and vigour of Christian theological output, Muslims can find it difficult to know precisely how most Christians understand the Trinity. It is also our experience that Christians are usually keener to debate other topics; and we tend to conclude that this is because they themselves are uncomfortable with aspects of their Trinitarian theology.

What I will try to do, then, is to set out my own understanding, as a Muslim, of the Trinitarian doctrine. I would start by making the obvious point that I recognise that a lot is at stake here for historic Christian orthodoxy. The fundamental doctrine of Trinity makes no sense unless the doctrines of incarnation and atonement are also accepted. St Anselm, in his Cur Deus Homo, showed that the concept of atonement demanded that Christ had to be God, since only an infinite sacrifice could atone for the limitless evil of humanity, which was, in Augustine's words, a massa damnata - a damned mass because of Adam's original sin. Jesus of Nazareth was hence God incarnate walking on earth, distinct from God the Father dwelling in heaven and hearing our prayers. It thus became necessary to think of God as at least two in one, who were at least for a while existing in heaven and on earth, as distinct entities. In early Christianity, the Logos which was the Christ-spirit believed to be active as a divine presence in human life, in time became hypostatized as a third person, and so the Trinity was born. No doubt this process was shaped by the triadic beliefs which hovered in the Near Eastern air of the time, many of which included the belief in a divine atonement figure.

Now, looking at the evidence for this process, I have to confess I am not a Biblical scholar, armed with the dazzling array of philological qualifications deployed by so many others. But it does seem to me that a consensus has been emerging among serious historians, pre-eminent among whom are figures such as Professor Geza Vermes of Oxford, that Jesus of Nazareth himself never believed, or taught, that he was the second person of a divine trinity. We know that he was intensely conscious of God as a divine and loving Father, and that he dedicated his ministry to proclaiming the imminence of God's kingdom, and to explaining how human creatures could transform themselves in preparation for that momentous time. He believed himself to be the Messiah, and the 'son of man' foretold by the prophets. We know from the study of first-century Judaism, recently made accessible by the Qumran discoveries, that neither of these terms would have been understood as implying divinity: they merely denoted purified servants of God.

The term 'son of God', frequently invoked in patristic and medieval thinking to prop up the doctrine of Jesus's divinity, was in fact similarly unpersuasive: in the Old Testament and in wider Near Eastern usage it can be applied to kings, pharoahs, miracle workers and others. Yet when St Paul carried his version of the Christian message beyond Jewish boundaries into the wider gentile world, this image of Christ's sonship was interpreted not metaphorically, but metaphysically. The resultant tale of controversies, anathemas and political interventions is complex; but what is clear is that the Hellenized Christ, who in one nature was of one substance with God, and in another nature was of one substance with humanity, bore no significant resemblance to the ascetic prophet who had walked the roads of Galilee some three centuries before.

From the Muslim viewpoint, this desemiticising of Jesus was a catastrophe. Three centuries after Nicea, the Quran stated:

'The Messiah, son of Mary, was no other than a messenger, messengers the like of whom had passed away before him . . . O people of the Book - stress not in your religion other than the truth, and follow not the vain desires of a people who went astray before you.' (Surat al-Ma'ida, 75)

'O people of the Scripture! Do not exaggerate in your religion, nor utter anything concerning God save the truth. The Messiah, Jesus son of Mary, was only a messenger of God, and His word which He conveyed unto Mary, and a spirit from Him. So believe in God and His messengers, and do not say 'Three'. Desist, it will be better for you. God is only One God. . . . The Messiah would never have scorned to be a slave of God.' (Surat al-Nisa, 171-2)

Mainstream Islam, however, despite its rapid spread over non-Semitic populations, never succumbed to this temptation. The best-known of all devotional poems about the Blessed Prophet Muhammad: the famous Mantle Ode of al-Busairi, defines the frontier of acceptable veneration:

'Renounce what the Christians claim concerning their prophet,
Then praise him as you will, and with all your heart.
For although he was of human nature,
He was the best of humanity without exception.'