Great God! I'd rather be A Pagan suckled in a creed outworn (9-10)
To the speaker "Great God" might symbolize Christianity, and hence the modern; the rise of modernity entailed the rooting out of paganism. Those polytheistic religions are now a "creed outworn." They are dead, but, according to the speaker, their death has given life to something horrible: "getting and spending."