A Christian is a person who has died with Christ, whose stiff neck has been broken, whose brazen forehead has been shattered, whose strong heart has been crushed, whose pride has been slain, and whose life is now mastered by Jesus Christ.

From Galatians 2:20:  “I have been crucified with Christ and I no longer live, but Christ lives in me. The life I now live in the body, I live by faith in the Son of God, who loved me and gave Himself for me.

John Piper (born 1946) is an American pastor, theologian, and Christian scholar.  He is the founder and teacher of desiringgod.org.