‘This one thing’ was of great concern to Paul in Phil 3 : 8 – 12 he said “what is more, I consider everything a loss compared to the surpassing greatness of knowing Christ Jesus my lord, for whose sake I have lost all things, I consider them rubbish, that I might gain Christ and be found in Him, not having a righteousness of my own that comes from the law, but that which is through faith in Christ.