Here is a great quote:
I am suggesting both that the belief in a secular society is an unproven belief accepted uncritically to justify a social institution, and also that the belief is mistaken. Put very briefly, the belief is that modern society is on a steady and irreversible course toward increasing secularization, and that this is to be welcomed since it enables us to put the wars of religion behind us and to create a society in which the conflicting truth-claims of the religions do not tear society to pieces.
Newbigin, Lesslie (1989). The Gospel in a Pluralist Society (p. 211). Wm. B. Eerdmans Publishing Co.. Kindle Edition.