The book is set up in a way that allows for a case-by-case examination of each piece of evidence. This is a wonderful procedure because it allows for each passage, document or inscription to be evidence for its own time and place, leaving open sociological and geographical variations. All the texts are recorded in full in the first half of the book. Each is introduced by a handy guide, telling where the original is published, what translation is used, date, provenance, original language, and short bibliography. What follows each text is Donaldson's commentary. The texts are grouped in these categories: Scripture/LXX/Apocrypha; Pseudepigrapha; Qumran; Philo; Josephus; Greco-Roman Literature; Early Christian Literature; Inscriptions.
Part 2 is a dedicated discussion of the evidence culled from Part 1. So Donaldson has a chapter each on Sympathization; Conversion; Ethical Monotheism; Participation in Eschatological Salvation.
In the end, Donaldson argues that Christianity's globalization of its religion is not a unique development of Christianity. It is firmly based in a universalism already at work in Judaism.