The recent discovery and translation of Herman Bavinck’s (1854–1921) Reformed Ethics and the ongoing work on the sources and contours of his organic ontology create the impetus to relate these two trajectories together. The twin questions this article will be asking, precisely, are these: what is the logical relationship between Bavinck’s organic whole federalism, where ethical ties are ontologically constitutive, with his claim in the Reformed Ethics that sin’s organizing principle is the prioritization of the ego above all else? Further, how does that organic whole anthropology inform his vision of renewal and the subsequent ethical imperative that flow from the Spirit’s regenerative work? This article traces Bavinck’s logic through the Ethics on these twin questions, while being cognizant of the rest of his oeuvre. With this exposition in hand, this article then relates Bavinck’s outlook to current discussions in Protestant theological ethics.