Anyone who wants to know the Biblical basis for them to be declared righteous before God should listen to the podcast at the last link above.
Now Kevin DeYoung has weighed in with some comments and questions for N.T. Wright. Excellent theological discussion at a very high level.
He has done so in three parts and in the form of four questions for professor Wright.
take some time and go read all three of these posts. The amazing thing is the subtlety of Wright’s error and the detailed way that DeYoung teases out the truth.