The true Christian is one whose religion is in his heart and life. It is felt by himself in his heart. It is seen by others in his conduct and life. He feels his sinfulness, guilt, and badness, and repents. He sees Jesus Christ to be that Divine Saviour whom his soul needs, and commits himself to Him. He puts off the old man with his corrupt and carnal habits, and puts on the new man. He lives a new and holy life, fighting habitually against the world, the flesh, and the devil. Christ Himself is the corner stone of His Christianity. Ask him in what he trusts for the forgiveness of his many sins, and he will tell you, in the death of Christ.—Ask him in what righteousness he hopes to stand innocent at the judgment day, and he will tell You it is the righteousness of Christ.—Ask him by what pattern he tries to frame his life, and he will tell you that it is the example of Christ.

But, beside all this, there is one thing in a true Christian which is eminently peculiar to him. That thing is love to Christ. Knowledge, faith, hope, reverence, obedience, are all marked features in a true Christian’s character. But his picture would be very imperfect if you omitted his “love” to his Divine Master. He not only knows, trusts, and obeys. He goes further than this,—he loves.

—J. C. Ryle
Holiness: Its Nature, Hindrances, Difficulties and Roots (London: William Hunt and Company, 1889), 341.