He preached on how the supremacy of Jesus should create radical sacrifice in the lives of ministers. I feel like when he speaks at these pastor's conferences he stands up there as an unmuzzled prophet. It was theologically, spiritually, emotionally, and practically overwhelming. It was like you couldn't even take notes or glance down at your Bible, but you knew you were being summoned to live and die in a manner past your capability. Terrifying and glorious at the same time.
There were a few lines he quoted from Isaac Watts that were particularly sweet and powerful:
Must I be carried to the skies
On flowery beds of ease
While others fought to win the prize
And sailed through bloody seas?