Obedience Is Supernatural

Only Christians can obey God rightly. Therefore, the merest potential for obedience comes from outside nature, since just being a Christian is supernatural. Not only that, but we obey the will of God by being filled with the Spirit, by walking in the Spirit. How, then, could the origin or empowerment of our obedience be anything but supernatural—unless you would reduce the Holy Spirit of God to the level of nature?