A 'slave' is forced to serve a master...a 'servant' of Christ chooses to do so. I choose to follow Christ by my own free will.
"But thanks be to God, that you who were once slaves of sin have become obedient from the heart to the standard of teaching to which you were committed, and, having been set free from sin, have become slaves of righteousness.
Sounds to me like we are slaves either way.
So by works you were saved. But just one thing. Seeing that God says we are spirtitually dead. How did you choose ? Can dead people select anything ?
Interesting.
Paul refers to himself as a bondslave. A bondslave is no longer free. A Bondslave is a slave who when given the choice to be free, exercises that choice to be forever enslaved to his master and thus surrenders any free will that he may have had.
He is then placed into a position where he has voluntarily placed himself into a position where he is "forced" to serve his master.