Timmons defends a metaethical view that exploits certain contextualist themes in philosophy of language and epistemology. He advances what he calls assertoric non-descriptivism, a view that employs semantic contextualism in giving an account of moral discourse. This view, which like traditional non-descriptivist views stresses the practical, action-guiding function of moral thought and discourse, also allows that moral sentences, as typically used, make genuine assertions. Timmons then defends a contextualist moral epistemology thus completing his overall program of contextualism in ethics.