Over the last several years discussions concerning the relation between one’s given biology and one’s identity have become increasingly prosaic, even as the construal of this relationship has become decidedly more diffuse. Insofar as one’s gender is increasingly associated with one’s own thoughts, feelings and desires, gender is now viewed as existing along a continuum. Transgender individuals perceive a deep conflict between their true identity, or sense of self, as being other than the biological sex they were assigned at birth. Transsexual surgery is offered as one option for those suffering from gender dysphoria, whereby one’s body is brought into alignment with one’s true sense of gender. The Christian tradition confesses the goodness of the human body, a theological claim underwritten by the incarnation of Jesus Christ. Contemporary, principle-based bioethical discussions of transsexual surgery as an effective treatment for gender dysphoria often fail to address more complex issues of identity as it relates to embodiment, and too readily view the body as something over which one can exercise unfettered dominion. The prospect of transsexual surgery provides a challenge to Christian ethics, not by directly questioning the goodness of embodiment as such, but by challenging the goodness of this particular body vis-à-vis one’s ‘true’ identity. Must transsexual surgery however be interpreted as a Gnostic, or docetic, action? Or, are there ways in which it is possible to both affirm the goodness of the body along theological lines without necessarily precluding the possibility of transsexual surgery? This paper will take up this question, by drawing upon Aquinas, Oliver O’Donovan, and more recently the work of Robert Song.