Have not been able to locate this referenced resource- is it available?
Josephus Antiquities XV. 53, 156. within- Miller, N. F. (n.d.). A Semantic and Structural Analysis of Hebrews.
Sorry found it in another resource- Dods, Marcus. “The Epistle to the Hebrews.” In The Expositor’s Greek Testament: Commentary, Vol. 4. New York: George H. Doran Company, n.d.