This verse means more to me today then ever before. Proof it is the living word and God is always revealing.
In the past couple of years I have been going through some major reproofing and rebuking. (Reproof uses God's Word to unveil sin. Rebuke is the Holy Spirit's convicting work through His Word.)
I confess I was mediocre, luke warm, middle of the road, and that was acceptable to me. I also confess the fact that I could not tell you what sound doctrine was, boy was I blind. I allowed my ears to be tickled a lot (as John MaCathur puts it so well "They prefer to be entertained by teachings that produce pleasant sensations and leave them with a good feeling. They have an itch to get their ears tickled by nice stories, positive thinking, and a little psychology. However, the gospel doesn't tickle the ears--it boxes them! God's Word brings reproof, rebuke, and conviction of sin"). God also revealed how much of a feminist beast I was (opposite of a biblical marriage) and wow, this has been a big one for me!! (worthy of another post). I also regret the fact that I would not face hardship in a godly manor. I either dealt with it in my own strength or would avoid it, which resulted in not gaining the good that comes from hardship. I missed out on those blessings.
I look back in my past and say WHOA! And if the past doesn't make you say whoa, something is wrong. I grieve my past but I am thankful for the wisdom it has brought.
I will always be going through reproofing and rebuking. I now look forward to the growth and blessings it will bring.... I feel as if I am more hopeful for my future.