Biblical teaching on Justification is virtually non existent today in many churches. It is blurred by many claiming to be evangelical and attacked head on by Wright and his mates.
More and more I meet people who all their lives have attended evangelical churches and they haven't the foggiest notion of what justification means. Shame on those of us who preach that this hasn't been embedded in the minds of our listeners.
There is no better definition than the one put together by Westminster divines for the weak minded in the Shorter Catechism (Answer 33), Justification is an act of God's free grace, wherein He pardoneth all our sins and accepteth us as righteous in His sight, only for the righteousness of Christ imputed to us and received by faith alone.
If you are a serious minded Christian you will want to read and read all that you can on this subject. It will transform your life and warm your heart.
Some books that will be helpful:
Justification by Faith Alone, Philip Eveson, DayOne Publisher
Counted Righteous in Christ, John Piper, IVP
Not Guilty, James Buchanan, Grace Publications.
You will read these books in a few evenings.
For any students out there - (Steelo etc) - with loads of time on their hands.
Justification - James Buchanan - Banner of Truth
John Owen - Volume 5
If you have an mp3 player - download Edward Donnelly's four addresses on Justification and listen to until you know them off by heart.
These books and sermons will put theological steel in your mind and a glow of praise in your heart.