The conservative side of the quest for true Christianity – what traditionalists call the “rule of faith” – can also be organized in terms of doctrine, culture, and politics. The second chapter begins by looking at the doctrinal quest, which focuses on the retrieval of “historic Christianity.” John Henry Newman, Karl Barth, and C. S. Lewis represent key moments in the rise of retrievalism among Protestants.

Doctrine became increasingly less important, giving way to the second form of the conservative quest: the turn to culture as the defining feature of Christianity. The third chapter traces the development of postliberalism through the lens of mainline Protestantism’s interest in the authority and interpretation of scripture, beginning with biblical theology and concluding with the postliberal project of theological interpretation of scripture. This development explains how the norms of Christianity became understood as cultural norms, thus paving the way for orthodoxy becoming a form of culture war.

The “crisis of evangelicalism” that arose in 2016 with the election of Donald Trump, who was supported by 80 percent of American evangelicals, provides a case study in the challenge of determining who counts as a “true evangelical” or a “true Christian.” The distinction between descriptive and prescriptive approaches to Christianity helps to clarify much of the controversy. The anxieties of modernity have forced all Christians, liberal and conservative, to explore new approaches to prescriptivism.

Tertullian provides evidence in several writings addressed to catechumens of the ways in which Christian contestations about ritual related to knowledge of God. Against what he describes as the obfuscations of heretical and pagan ritual, Tertullian emphasizes the simplicity of Christian ritual as a fitting mode for expressing true divine power. This chapter focuses on De spectaculis, De oratione, De baptismo, and Tertullian’s appeals to the Rule of Faith.

Frances Young explores the changing relationship in the history of the early church between the gospel texts and the determination of true doctrine. She shows that, even when the four gospels had been accepted as canonical, what shaped doctrine most was the overarching sense of what scripture as a whole was about, epitomized in the ’Rule of Faith’ and the creeds.

Prior to the dialogue on Easter morning that forms the major part of this work, the Epistula Apostolorum includes a sequence of seven stories of Jesus’ miracles. Since this text also includes references to his birth and his ascension, its scope is comparable to that of the Gospel of Luke, in contrast to other so-called ‘dialogue gospels’, which focus exclusively on post-Easter appearances of the risen Lord. Skilfully integrated into its context within the Epistula, the miracle sequence opens with a story from Jesus’ childhood also attested in non-canonical sources, here illustrating a Christology which differentiates the pre-existent from the incarnate Christ. This is followed by a version of the water-into-wine story that seems to preserve pre-Johannine features, challenging the assumption that Jesus traditions in non-canonical sources always postdate and depend upon their canonical versions. Other miracles recounted in this group of stories shows awareness of synoptic traditions, although substantial redactional elements are also present.