[Sidenote: Man's Nature]
Let us start, however, with something more remote from our subject, but more obvious. Man[12] has a twofold nature, a spiritual and a bodily. According to the spiritual nature, which men call the soul, he is called a spiritual, or inner, or new man; according to the bodily nature, which men call the flesh, he is called a carnal, or outward, or old man, of whom the Apostle writes, in II Cor. iv, "Though our outward man is corrupted, yet the inward man is renewed day by day." [2 Cor. 4:16] Because of this diversity of nature the Scriptures assert contradictory things of the same man, since these two men in the same man contradict each other, since the flesh lusteth against the spirit and the spirit against the flesh (Gal. v) [Gal. 5:17].
[Sidenote: The Inward Man]
First, let us contemplate the inward man, to see how a righteous, free and truly Christian man, that is, a new, spiritual, inward man, comes into being. It is evident that no external thing, whatsoever it be, has any influence whatever in producing Christian righteousness or liberty, nor in producing unrighteousness or bondage. A simple argument will furnish the proof. What can it profit the soul if the body are well, be free and active, eat, drink and do as it pleases? For in these things even the most godless slaves of all the vices are well. On the other hand, how will ill health or imprisonment or hunger or thirst or any other external misfortune hurt the soul? With these things even the most godly men are afflicted, and those who because of a clear conscience are most free. None of these things touch either the liberty or the bondage of the soul. The soul receives no benefit if the body is adorned with the sacred robes of the priesthood, or dwells in sacred places, or is occupied with sacred duties, or prays, fasts, abstains from certain kinds of food or does any work whatsoever that can be done by the body and in the body. The righteousness and the freedom of the soul demand something far different, since the things which have been mentioned could be done by any wicked man, and such works produce nothing but hypocrites. On the other hand, it will not hurt the soul if the body is clothed in secular dress, dwells in unconsecrated places, eats and drinks as others do, does not pray aloud, and neglects to do all the things mentioned above, which hypocrites can do.
[Sidenote: The Word of God]
Further, to put aside all manner of works, even contemplation, meditation, and all that the soul can do, avail nothing. One thing and one only is necessary for Christian life, righteousness and liberty. That one thing is the most holy Word of God, the Gospel of Christ, as he says, John xi, "I am the resurrection and the life: he that believeth in me, shall not die forever" [John 11:25]; and John viii, "If the Son shall make you free, you shall be free indeed" [John 8:26]; and Matthew iv, "Not in bread alone doth man live; but in every word that proceedeth from the mouth of God." [Matt. 4:4] Let us then consider it certain and conclusively established that the soul can do without all things except the Word of God, and that where this is not there is no help for the soul in anything else whatever. But if it has the Word it is rich and lacks nothing, since this Word is the Word of life, of truth, of light, of peace, of righteousness, of salvation, of joy, of liberty, of wisdom, of power, of grace, of glory and of every blessing beyond our power to estimate. This is why the prophet in the entire cxix Psalm, and in many other places of Scripture, with so many sighs yearns after the Word of God and applies so many names to it [Psalm 119]. On the other hand, there is no more terrible plague with which the wrath of God can smite men than a famine of the hearing of His Word, as He says in Amos, just as there is no greater mercy than when He sends forth His Word [Amos 8:11 f.], as we read in Psalm cvii, "He sent His word and healed them, and delivered them from their destructions." [Psalm 107:20] Nor was Christ sent into the world for any other ministry but that of the Word, and the whole spiritual estate, apostles, bishops and all the priests, has been called and instituted only or the ministry of the Word.
[Sidenote: The Gospel]
You ask, "What then is this Word of God, and how shall it be used, since there are so many words of God?" I answer. The Apostle explains that in Romans i. The Word is the Gospel of God concerning His Son, Who was made flesh, suffered, rose from the dead, and was glorified through the Spirit Who sanctifies. For to preach Christ means to feed the soul, to make it righteous, to set it free and to save it, if it believe the preaching. For faith alone is the saving and efficacious use of the Word of God, Romans x, "If thou confess with thy mouth that Jesus is Lord, and believe with thy heart that God hath raised Him up from the dead, thou shalt be saved" [Rom. 10:9]; and again, "The end of the law is Christ, unto righteousness to every one that believeth" [Rom. 10:4]; and, Romans i, "The just shall live by his faith." [Rom. 1:17] The Word of God cannot be received and cherished by any works whatever, but only by faith [Hab. 2:4]. Hence it is clear that, as the soul needs only the Word for its life and righteousness, so it is justified by faith alone and not by any works; for if it could be justified by anything else, it would not need the Word, and therefore it would not need faith. But this faith cannot at all exist in connection with works, that is to say, if you at the same time claim to be justified by works, whatever their character; for that would be to halt between two sides, to worship Baal and to kiss the hand [1 Kings 18:21], which, as Job says, is a very great iniquity [Job 31:27 f.]. Therefore the moment you begin to believe, you learn that all things in you are altogether blameworthy, sinful and damnable, as Romans iii says, "For all have sinned and lack the glory of God" [Rom. 3:23]; and again, "There is none just, there is none that doeth good, all have turned out of the way: they are become unprofitable together." [Rom. 3:10 ff.] When you have learned this, you will know that you need Christ, Who suffered and rose again or you, that, believing in Him, you may through this faith become a new man, in that all your sins are forgiven, and you are justified by the merits of another, namely, of Christ alone.
[Sidenote: Justification by Faith]
Since, therefore, this faith can rule only in the inward man, as Romans x says, "With the heart we believe unto righteousness"; and since faith alone justifies, it is clear that the inward man cannot be justified, made free and be saved by any outward work or dealing whatsoever, and that works, whatever their character, have nothing to do with this inward man. On the other hand, only ungodliness and unbelief of heart, and no outward work, make him guilty and a damnable servant of sin. Wherefore it ought to be the first concern of every Christian to lay aside all trust in works, and more and more to strengthen faith alone, and through faith to grow in the knowledge, not of works, but of Christ Jesus, Who suffered and rose for him, as Peter teaches, in the last chapter of his first Epistle [1 Pet. 5:10]; since no other work makes a Christian. Thus when the Jews asked Christ, John vi [John 6:28 f.], what they should do that they might work the works of God, He brushed aside the multitude of works in which He saw that they abounded [John 6:27], and enjoined upon them a single work, saying, "This is the work of God, that you believe in Him Whom He hath sent. For Him hath God the Father sealed." [John 6:29]