Delving deep!
This is a reference book. It is an abridgement of the popular New International Dictionary of New Testament Theology (NIDNTT), edited by Colin Brown, which itself was based on a German work which appeared during the 1960s and 70s.
John Benton
THE NIV THEOLOGICAL DICTIONARY OF NEW TESTAMENT WORDS
By Verlyn D. Verbrugge
Zondervan / Paternoster. 1544 pages
ISBN 1 84227 076 1