This essay explores a range of sources that discuss the proper behaviors of left-handed people in various rituals. At the heart of these texts, and the debates surrounding them, is an implicitly shared question: When do we understand the law to demand uniformity, even at the price of repressing difference and exclusion? And when do we understand the law to refract itself through the lens of human diversity? At the end, we will briefly treat application of these models of diversity to modern ideas about sexuality.