Unfortunately, Scripture doesn't agree with him on those subjects, so he wouldn't be able to use them. As far as good works go, they show faith, they don't accrue salvatory credits or merit, that has already happened through Christ.
> Unfortunately, Scripture doesn’t agree with him on those subjects,
I beg to differ. See http://en.wikipedia.org/wiki/Good_works for a list of references.
> As far as good works go, they show faith, they don’t accrue salvatory credits
It may be argued that while good works do not “accrue salvatory credits”, they are a necessary consequence of divine grace. Not doing good works can thus be viewed as evidence of insalvancy.