Witnesses to the Word is based on the description of the Gospel writers in Dei verbum 19, which in turn alludes to Luke's description of his sources in the prologue to his Gospel (Luke 1:1-4). In the New Testament "the word"' can refer to the person of Jesus ("In the beginning was the Word," John 1:1) and to the good news about Jesus proclaimed by the early Christians and now preserved in the New Testament. Moreover, the modern scholars whose works...