In this sermon, we see that unconfessed or even unrecognized sin (blind spots) robs us of joy. We walk around life like there is a heavy weight upon us, a weight of guilt, shame, or feeling like a hypocrite. Confession brings a joyful freedom, and also paves the way for more joy from other conduits and avenues in life (for example, it's hard to enjoy the blessing of deep friendship if you know you are not being honest).
Click Here to Download the Sin Root List mentioned in this sermon.
Is the author of Hebrews telling us that it is possible for a believer to get to a point where they can no longer repent? This is, indeed, a challenging passage, and so we must use the whole Word of God to help in our understanding. When things are unclear in any communication or desire for understanding, we ought to appeal to the most clear information we have in order to make sense of the less clear. This helps us understand context better. And while the short answer is "no", if the Spirit of God is within you and you have been born again in Jesus, then your salvation is secure...the longer answer is that this passage, and others like it, serve as a stern warning to all those who are unsure where their faith actually lies and we should all regularly ask God to both give us assurance and point out any area in our hearts which requires repentance.