Explores the use of the words pistis and pisteuein as faith terminology by Josephus. This is the first major study of the pist- word group in the writings of Josephus.The first part of the book examines the development of a religious understanding of the Greek word group. Special emphasis is given to the religious use of the pist- words in Classical and Hellenistic Greek, in the Septuagint, in Sirach and in Philo.The second and main part of the book deals specifically with the use of the word group - both secular and religious - by Josephus. His use of this faith terminology is compared with that of the New Testament. This section includes a critical look at the thesis that 'faith' in the New Testament is primarily a Hellenistic concept.