We now take the secular state so much for granted that it is hard for us to appreciate its novelty, since before the modern period, there were no “secular” institutions and no “secular” states in our sense of the word. Their creation required the development of an entirely different understanding of religion, one that was unique to the modern west.

No other culture has had anything remotely like it, and before the 18th century, it would have been incomprehensible even to European Catholics. The words in other languages that we translate as “religion” invariably refer to something vaguer, larger and more inclusive.

The Arabic word din signifies an entire way of life, and the Sanskrit dharma covers law, politics, and social institutions as well as piety. The Hebrew Bible has no abstract concept of “religion”; and the Talmudic rabbis would have found it impossible to define faith in a single word or formula, because the Talmud was expressly designed to bring the whole of human life into the ambit of the sacred.

The Oxford Classical Dictionary firmly states: “No word in either Greek or Latin corresponds to the English ‘religion’ or ‘religious’.” In fact, the only tradition that satisfies the modern western criterion of religion as a purely private pursuit is Protestant Christianity, which, like our western view of “religion”, was also a creation of the early modern period.

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