8More than that, I count all things to be loss in view of the surpassing value of knowing Christ Jesus my Lord, for whom I have suffered the loss of all things, and count them but rubbish so that I may gain Christ, 9and may be found in Him, not having a righteousness of my own derived from the Law, but that which is through faith in Christ, the righteousness which comes from God on the basis of faith,Christ alone. He is the only way. I cannot do it. My own righteousness is self righteousness and it falls woefully short of where I need to be, where only He can bring me.
Philippians 3:8-9 (NASB)
You see here both a comparison of opposites and an indication that a man who wishes to obtain Christ's righteousness must abandon his own righteousness...If by establishing our own righteousness we shake off the righteousness of God, to attain the latter we must indeed completely do away with the former.
John Calvin - Institutes of The Christian Religion: 3.11.13
God knew it (that is why He sent His Son), Calvin learned it (that is why he wrote about it), I need to accept it as a fact in my life and the model for my behavior.