A faith which works not for purification will work for putrefaction. Unless our faith makes us pine after holiness, it is no better than the faith of devils, and perhaps it is not even so good as that. A holy man is the workmanship of the Holy Spirit.
I would sooner be holy than happy if the two things could be divorced. Were it possible for a man always to sorrow and yet to be pure, I would choose the sorrow if I might win the purity, for to be free from the power of sin, to be made to love holiness, is true happiness.
If Christ has died for me - ungodly as I am, without strength as I am - then I can no longer live in sin, but must arouse myself to love and serve Him who has redeemed me. I cannot trifle with the evil that killed my best Friend. I must be holy for his sake. How can I live in sin when He has died to save me from it?