“Consider if you go the New Testament for instruction on how to live, you are told to give away all your possessions, make no plans for the future, reject your family if they disagree with you, and stay celibate if you can (see respectively Matthew 19.21, Matthew 6.25, Matthew 12.48, and 1 Corinthians 7). This is the outlook of people who sincerely believed that the Messiah was going to return next week or next month, anyway very soon. It is an unlivable ethic, and when after several centuries the Second Coming had still not materialised and hope of it had been deferred sine die, more was needed in the way of ethics. Where did it come from? From Greek philosophy – not least from the Stoics – and from the Roman Republican virtues of probity, honour, duty, restraint, respect, friendship and generosity that Cicero, Seneca, Virgil, Horace, and countless others wrote about and enjoined ceaselessly. ‘Christian values’ are largely Greek and Roman secular values. So Christianity is not even Christianity.”

An associated point reinforces this. The early Christians, like St Paul, were Jews. They believed that when you die, your body sleeps in the grave until the Last Trump, at which points the graves open and all the dead rise to be judged. St Paul said that the faithful will ‘see no corruption’ – that is, their bodies will not rot in the grave. But anyway at the Last Trump when all rise, the faithful will be clothed in ‘new bodies,’ resplendent and fine.

But “When Christianity had become the official religion of the Roman Empire (which it very quickly did; it was legalised by Constantine’s Edict of Milan in 313, and made the empire’s official religion by Theodosius IX in 381; within the next few decades all other religions were proscribed) and churches were being built apace, all requiring relics of the martyrs and saints, these latter were found to have rotted (‘seen corruption’) in their graves. This embarrassing problem was quickly got over by importing another useful idea from Greek philosophy: Plato’s doctrine of the immortal soul, which entered Chritianity via the Neo-Platonism of Plotinus and his followers. That is why, starting from several centuries after the lifetime of Jesus of Nazareth, Christians believe in such a tianity is not Christianity but borrowed Greek philosophy.

Mr Cameron would in fact have been more right to say that ‘we are Greeks and Romans’ and meant that we are defined by the following words – and therefore concepts – of classical Greek and Latin origin: democracy, liberalism, values, history, morality, comedy, tragedy, literature, music, academy, alphabet, memory, politics, ethics, populace, geography, energy, exploration, hegemony, theory, mathematics, science, theatre, medicine, gymnasium, climate, clone, bureaucracy, dialect, analogy, psychology, method, nostalgia, organ, encyclopaedia, education, paradox, empiricism, polemic, rhetoric, dinosaur, telescope, system, school, trophy, type, fantasy, photography…take almost any word denoting political and social institutions, ideas, learning, science and technology, medicine, and culture, and it derives from the language – and therefore the ideas and the history – of ancient Greece and Rome.

Christianity attempted to suppress all this heritage, and for a time succeeded. The Emperor Justinian closed the schools of Athens – the institutions founded by Plato, Aristotle and others – in 529, because they taught ‘pagan’ philosophy (‘philosophy’ then meant everything – science, history and the rest included). There was little learning worth the name in the first seven centuries of Christianity’s dominance, because it had supressed it, leaving only the thin pickings of scripture; later it persecuted those who advanced scientific ideas in conflict with scripture: Giordano Bruno was burned at the stake, and Galileo nearly so, for not accepting that the sun goes round the earth as Psalm 104 and Joshua 10.12-13 says it does. If the list of words just given provides us with the terminology that we use to describe ourselves today, then the mighty endeavour of Christianity to obliterate all those words and what they mean makes us anything but a Christian nation.

We who had protest against the description of us as a ‘Christian nation’ had in mind the fact that we are a highly pluralistic nation, with many faiths and none, and that the ‘nones’ are net contributors to our society and culture in major ways that does not deserve having the fact of their principled rejection of religious belief overlooked.

But the remarks above should be further evidence that the description of us as a ‘Christian nation’ is deeply misleading if taken to imply that we are a nation of believers in Christian doctrines and legends.