Although the conclusion to why we are powerless is not surprising – ‘unbelief’ – it’s really the writer’s response to his own unbelief that I like here. It does talk in Hebrews about us being careful not to get caught up in unbelief. Brindle says, for example:
Why do we not see the most amazing, life-altering miracles and movements of God? Because we are faithless. But if you believe, Mark 9:23 says, ALL things are possible to him who believes. A faithless and bottled Christianity sees nothing of the power and might of God. He won’t work in us and through us until He has a clean and trusty vessel to use. He will not use an unsurrendered man to reach an unsurrendered world.
And other good material!