" One of the great accomplishments of the Reformation was the restoration of the idea
of calling or vocation in every lawful endeavor. This abolished the old sacred/secular hierarchy, where it was assumed that if you were really sold out for Jesus you would be in a nunnery, or some other place that was equally high-minded. Being a merchant was kind of a tragic necessity, but somebody had to bring in the tithes. Unfortunately, this medieval mistake is creeping back in, having made great inroads in the evangelical world. What do people who are "sold out for Jesus" do now? We now call it "full time Christian work." But what other kind is there? "

― Douglas Wilson , Gashmu Saith It: How to Build Christian Communities that Save the World