The following audio appears courtesy of St Irenaeus Ministries.
Christ Our High Priest. End of ch. 4.
Excursus on Holiness. Takes a closer look at 4:14-16.
Spiritual Milk. 5:11-ch. 6.
Apostasy and Promise. Ch. 6 continued.
A Better Covenant. Ch. 8.
The Old and New Covenants. Beginning of ch 9,
Diatheke: A Study of the Word for “Covenant.” Ch. 9 continued.
The Faith of the Ancients. Ch. 11.
Disciplines of the Lord. Ch. 12.
Conclusion. Ch. 13.