The author, Dr. Frederick C. Grant, professor at the Union Theological Seminary, New York, has long been known by Biblical scholars as one of the acknowledged leaders in Biblical scholarship. He is also a prolific writer in this field, each succeeding volume showing a comprehensive knowledge of what other writers have already said so that his own writing falls easily into place either supplementing, or often correcting, what has been written before. His present concern is to give proper recognition to the Jewish backgrounds and antecedents of both the New Testament and early Christian religion. He says, ""the relations between the early Christian church, its hopes, beliefs and practices, above all its worship, and the mother-faith (Judaism) are such that one cannot truly understand the New Testament or the religion it enshrines without a deep and sympathetic understanding of Judaism."" Both the warm sympathy and deep understanding are communicated by Dr. Grant, and his book becomes required reading for any professional or lay study of the New Testament.