There is a wonderful old song by this title: Living for Jesus.
It reflects the posture of one who has made a firm decision to step away from the world and live unto the Lord.
Rarely does a person accept Christ and then make an immediate U-turn in all areas. There is a beautiful process whereby the believer is privileged to respond to the challenge of God's Word, receive the counsel of mature Brothers and Sisters, and learn to follow the leading of the Holy Spirit in prayer.
Most of modern Christianity has become community and experience driven, rather than Lord centered.
When the Christian is taught that he must leave all behind, take up the Cross and follow the Lord, he is confronted by the initial decision: is he or is he not willing to pay the price?
Every story that stirs the heart begins with a deep and private decision that results in a public display of yieldedness. And, the main character of that story is allowed test after test, in order to bring him constantly back to that precious bottom line.
Soldier of the Cross, it is usually the little snigly things of every day life that eat away at the soul via the mind. Nevertheless, whether tragedy or thistles, the bottom line always remains the same.
This is the refrain of the song:
O Jesus, Lord and Savior, I give myself to Thee,
For Thou, in Thy atonement, didst give Thyself for me.
I own no other Master, my heart shall be Thy throne.
My life I give, henceforth to live, O Christ, for Thee alone.