New Testament scholarship uncovers much about first-century Christianity. Early Christian masters such as Origen and Augustine draw great attention to the third and following centuries. Yet oddly, despite this flood of attention to both the first century and to the third and later centuries, the second century often escapes notice, this despite its almost living memory of Jesus and his apostles from only a generation or two prior. A distinctive biblical exegesis was used by those second-century apologists who challenged Greco-Roman pagan religionists. Along with introducing the general shape...