The emerging and missional church movements have raised decisive questions about what it means to embody the Christian faith in a post-Christian and postmodern world. A common reactionary response denies the significance of the context and reasserts the supremacy of classical orthodoxy. An equally common position at the other end of the spectrum involves a rejection of orthodoxy as contextually insensitive and incapable of being inclusive and missional at all. The one asserts its orthodoxy at the expense of being missional and contextual; the other emphasizes generosity at the expense of its fidelity to 'the faith that was once for all entrusted to the saints' (Jude 1:3). The church today needs a theology that is both orthodox and missional--doing justice to both aspects. Gary Tyra has written just such a book. InA Missional Orthodoxy he critically engages with the works of Brian McLaren and Marcus Borg for the sake of developing a comprehensive missional theology that retains what he calls the 'four Christological verities' at the heart of Christian doctrine. Tyra discusses the methodological question of contextualization, offering an incarnational model of recontextualization that unites the postmodern insights of the culture with the truths of the biblical text. On the basis of this missional foundation, he examines all the major Christian doctrines in order to overcome the false antithesis between a fighting fundamentalism and a too-accommodating liberalism. The result is a humble, modest, missionally faithful orthodoxy that provides a compelling witness within a world of competing extremes.