jats:titleAbstract</jats:title>jats:pThe discourse surrounding Luke 15:11–32 — commonly titled “the parable of the prodigal son” — in early modern England is a major site of convergence for Aristotelian and Christian ethics. During the sixteenth and seventeenth centuries, the perceived role of “prodigality” (in the sense of excessive expenditure) in the parable of the prodigal son became deeply bound up with Aristotelian ethics; the parable's evolving title and its increasingly prominent role in jats:italiccasus summarii</jats:italic> both contributed to and were affected by these changes. Despite the importance of both Aristotelian ethics and the parable of the prodigal son to early modern culture, scant research exists on the vital intersection between the two. By tracing the evolution of biblical paratexts, this article explicates how the parable gained its title. It then explores how the shared use of jats:italicἀσωτία</jats:italic> (prodigality) in Aristotle's jats:italicNicomachean Ethics</jats:italic> and Luke 15:13 affected the interpretation of Luke 15:11–32 in early modern England, and the repercussions this had for early modern philosophy and theology. It concludes that Aristotelian ethics were hugely influential in both the early modern interpretation of Luke 15:11–32 and the concept of “prodigality” that the parable was so often used to explore.</jats:p>