Practical divinity and medical ethics: lawful versus unlawful medicine in the writings of William Perkins (1558-1602).

This article examines for the first time the theologically based medical ethics of the late sixteenth-century English Calvinist minister William Perkins. Although Perkins did not write a single focused book on the subject of medical ethics, he addressed a variety of moral issues in medicine in his numerous treatises on how laypeople should conduct themselves in their vocations and in all aspects of their daily lives. Perkins wrote on familiar issues such as the qualities of a good physician, the conduct of sick persons, the role of the minister in healing, and obligations in time of pestilence. His most significant contribution was his distinction between "lawful" and "unlawful" medicine, the latter category including both medical astrology and magic. Perkins's works reached a far greater audience in England and especially New England than did the treatises of contemporary secular medical ethics authors and his writings were influential in guiding the moral thinking of many pious medical practitioners and laypersons.