There have been few attempts systematically to study the ethics of work in the early modern age on the basis of contemporary sources. Such a study should start with case studies of individual thinkers, as stepping stones to a more comprehensive study of the ethics of work. This article provides such a case study, of the seventeenth-century Dutch artisan Pieter Plockhoy (c.1620–1664). As will be shown, work was a central component of Plockhoy's philosophy of true, practical Christianity, and on the basis of his tracts a more or less coherent ethics of work can be reconstructed. Although this article concentrates on Plockhoy's philosophy of labour, his thought fits into a broader context of related contemporary thinkers, many of whom shared his concerns. Thus the article shows that for scholars wishing to study the ethics of work there is still a whole field which, though yielding a potentially rich harvest, lies fallow.