Question for doctor Faustus(Marlowe)

I don't think Marlow would have been an athiest. Sorcery and magic were part of widespread belief systems throughout Europe that predated Christianity. These early beliefs about magic were inextricable from folk medicine. Women in particular used a mix of magic and herbal medicine to treat common illnesses. But as Christianity spread and either assimilated or rejected other belief systems, practitioners of magic came to be viewed as evil. In the fifth century CE, St. Augustine, perhaps the most influential Christian thinker after St. Paul, pronounced all sorcery to be the work of evil spirits, to distinguish it from the good "magic" of Christian ritual and sacrament. The view of the sorcerer changed irrevocably. Magic was devil-worship, outside the framework of Church practice and belief, and those who practiced it were excommunicated and killed.