No one is capable of being captain of his own soul, master of her own fate. Each of us is worked upon by unconscious impulses of which we are not even aware and over which we have little control. Paul, unlike the typical American, does not think in terms of autonomous human beings. Paul proudly identifies himself as a “slave of Christ” (Gal 1:10). If the apocalyptic scenario is a picture of true reality, then no one is “free” in the domain of this world as it is. Either we must live our lives in the clutches of soul-destroying Powers or we are delivered into the “obedience of faith” (Rom 1:5; 16:26). Paradoxically, the new life in Christ can be called both slavery (the service of God) and freedom. This seeming contradiction of slavery and true freedom, which lies at the heart of the gospel, is beautifully invoked in the Episcopal Book of Common Prayer in words addressed to Christ, “whose service is perfect freedom”. . .
Being a “slave of righteousness” and a “slave of obedience” will sound intolerable to most modern ears. It takes hard mental work to enter Paul’s thought-world and understand that these phrases do not describe a bondage to a harsh puritanical code imposed upon us by a tyrannical outside force. He means the opposite. The gospel of Christ means precisely deliverance from tyrannical outside forces into a realm of light and life where “the obedience of faith” is the only natural and joyful way to be.
–Fleming Rutledge, The Crucifixion: Understanding the Death of Jesus Christ, 368-369.