Phil Ryken has recently posted a blog concerning Calvin’s use of the term ‘imputation’ with
regard to justification. It can be found at:

http://www.reformation21.org/Reformation_21_Blog/Reformation_21_Blog/58/vobId__6358/

This is a very helpful reference with all the debate over imputation these days. I would also recommend Calvin on James 2 (found in his commenatries) for a clear deliniation between declarative justification and demonstrative justification. Calvin puts it in such simple terms when he says, “Faith is the root, works are the fruit.” This is an indispensible resource in present discussions over the nature of justification.