This work argues that many early Christian quotations of the Old Testament derive not from scriptural manuscripts, but rather from authoritative written testimonia collections developed to support basic Christian beliefs. Combining recent patristic studies (notably on Justin and Barnabas) and evidence from Qumran with detailed examination of quotations in the New Testament, the book builds a fresh case for a neglected scholarly hypothesis. After reviewing the scholarly literature and analogous Jewish and Greco-Roman literary collections, the book presents a comprehensive overview of...