I believe "Episkopos" is claiming that salvation comes only when you are doing the works of righteousness. Not that you are saved by grace alone through faith in Christ alone, but only with the works included. No works = no salvation. Of course, what he means is "no visible works=no salvation", of course, visible is visible to him, or whomever would be your judge.
So his is a works based salvation (so called) that leads to the bondage of dead works as you try to keep Law, rather than the faith based salvation that lead to true works of righteousness as you live the life of Christ.
Who says this? Because I believe we are saved by grace alone, and not by works, this somehow means that this salvation "does nothing to empower" me?
Where in the world do you get this notion?
This is once again a straw man.