In this article, I examine how US evangelical opposition to LGBT rights stems from a unique understanding of sexuality and the person. As my respondents explained to me in over sixteen months of field research, evangelical rejection of LGBT individuals and practices is rooted not simply in prejudice but also in a culturally specific notion of personhood that requires Christian bodies to orient themselves to the divine. In evangelical Christianity, the body, along with its capacity to feel and communicate, is understood as a porous vessel receptive to communication with God. In contrast to a dominant idea that sexual orientations shape individual identities, sexuality within this religious world instead facilitates the movement of moral forces across individual bodies and geographic scales. Sexual desires and sexual acts are broadly understood in evangelical cosmology as communicative mediums for supernatural forces. This understanding of sexuality as a central component of moral agency shapes widespread practices of ostracism of people who identify as LGBT within evangelicalism and often leads to anti‐LGBT political positions. Claiming an LGBT identity is seen as making one a distinct kind of person incommensurate with evangelical porosity.