The central concern of last week's teaching - the main point of application - was truth from God's Word doesn't function in a life-giving way merely because we acknowledge it as true or hear it with agreement. God requires a hearing mixed with faith.
It's not enough to hear what God says. Hearing must be mixed with faith. In fact, our text says hearing is numbing and life-destroying unless it is a hearing combined with faith. Though the writer of our text doesn't press this truth home as lightly as I just did when I said hearing without faith is numbing and life-destroying. He actually calls us to fear divine judgment when we hear God's Word and don't hear it with the hearing of faith.