The Example of the Letter to the Hebrews for ministry

I was able to listen to most of the free live stream of David Johnston's 2017 Banner UK Minister's Conference talk entitled Hebrews: A Paradigm for Preaching, today. He argues that:

Hebrews is a model for us for preaching in that it is:

 (1) Grounded in Scripture

 (2) Centred on Christ

 (3) Applied to life

 (4) Empowered by the Spirit (especially chapters 3-4 e.g. 3:7; 4:12)