Hebrews (NICNT) by F.F. Bruce

For many readers the Epistle to the Hebrews is among the most difficult books of the New Testament. Understanding its message calls for a great familiarity with its Old Testament background and a good knowledge of first-century biblical exegesis. F. F. Bruce's long-standing hardcover volume on Hebrews in the New International Commentary on the New Testament (NICNT) series covers both of those fronts.