Here are a couple of online resources:

* http://xroads.virginia.edu/~HYPER/WEBER/cover.html
* http://www.faculty.rsu.edu/~felwell/Theorists/Weber/Whome.htm

In that case, it’s probably not true that a secular society is consumerist, but it may be true that a consumerist society is more inclined to secularism, should it happen that the most common religions in the society (in their contemporary practice) are seen as somehow anti-consumerist. (Given the variety of religious beliefs, this is not a given.)

Secularism as such says nothing about economic beliefs – secularism is simply the separation of the state from religion, and as the reasons for separating them are in the main not economic, the secular can hold economic beliefs across the spectrum. One can be both religious and secular; (“Render unto Caesar…” is a secular principle). But when a religion includes beliefs about economics (as Christianity does) then the two are connected. Economic truths can rule out religious ones, or vice versa.

Secularism allows consumerism, but does not thereby cause it.

As it happens, I think the term “consumerist” is being mis-used here – the actual word that should have been used was “rich”. It is easier for a camel to pass through the eye of a needle than for a rich man to enter the kingdom of heaven. (I always have mental pictures of a grinning George Soros turning up at the Pearly Gates with a worried looking camel, a giant food blender, and a large hypodermic syringe…) Thus, a rich society full of rich people would probably not hold those beliefs (unless they were very hypocritical), and would therefore not be happy to have a religion-controlled state able to pass sumptuary laws. Moreover, a rich society would have a better understanding of economics than they did two millennia ago, and would probably be more aware of the benefits of wealth and consumerism in relieving poverty and suffering justly. Religious opinions on economics would perhaps, therefore, seem less credible or moral to a large portion of the population.

That doesn’t, in any way, mean that either the secular or the non-religious are therefore either wealthy or consumerist. The opposite has several times been the case in history.