These reflections on Andrew Grosso’s recent book Personal Being highlight his philosophical construction of a concept of personhood based on themes from the writings Of Michael Polanyi and his use of this conception to express creatively elements of the traditional Christian doctrines on the trinity. Additional clarifications are sought regarding his formulations on the divine personhood of Jesus, the adequacy of his formulations on the intra-trinitarian relations, and the insightfulness of the absolute personhood of the divine. This study is a helpful model for extending Polanyian insights into the realm of dogmatic theology.