God is not good, or wise, or intelligent anyway that we know. So, people like Maimonides in the Jewish tradition, Eboncina in the Muslim tradition, Thomas Aquinas in the Christian tradition, insisted that we couldn't even say that God existed because our concept of existence is far too limited and they would have been horrified by the ease with which we talk about God today.

Jesus did not spend a great deal of time discoursing about the trinity or original sin or the incarnation, which have preoccupied later Christians. He went around doing good and being compassionate.

We can't say what God is, and until the modern period, Jewish, Christian, and Muslim theologians in the three God religions all knew that. They insisted that we have no idea what we meant when we said that God was good, or wise, or intelligent.

Ever since the Crusades, when Christians from western Europe were fighting holy wars against Muslims in the near east, western people have often perceived Islam as a violent and intolerant faith - even though when this prejudice took root Islam had a better record of tolerance than Christianity.

In the past some of the most influential Jewish, Christian and Muslim theologians, such as Maimonides, Aquinas and Ibn Sina, made it clear that it was very difficult to speak about God, because when we confront the ultimate, we are at the end of what words or thoughts can do.

For centuries, the Muslims were able to co-exist perfectly well with Jews and Christians in the Middle East.

I never intended to be a historian of religion. My aim was to become a professor of English Literature in a university, but I had a series of absolute career disasters and found myself making television programs about the nature of religion and about Christian history and started to discover about other religious traditions, and that was an absolute eye-opener for me.

Jewish, Christian, and Muslim theologians have insisted for centuries that God does not exist and that there is 'nothing' out there; in making these assertions, their aim was not to deny the reality of God but to safeguard God's transcendence.