The assertion that Christ is truly and fully human supports using Christology as a starting point to frame discussions surrounding humanity. This article focuses on the Christological distinction between personhood and nature that is made in the Chalcedonian Definition and argues that it could reframe current discussions in the science–theology discourse on humanity identity. As discussions of human identity often center around issues such as personhood, consciousness, and the soul, taking this Christological perspective into account means that scholars must consider (...) whether scientific contributions are engaging with characteristics of human nature or personhood, and recognize the theological distinction. To address some of the troubling implications of this reframing, this article proposes a vision of humanity as natural energies expressing an unrepeatable personhood, based largely on the work of the Eastern Orthodox theologian Christos Yannaras. This proposal takes traditional Christology seriously in its relevance to discussions on human identity, while possibly enabling even more productive engagement with scientific knowledge. (shrink)