“Faith Alone” saves the sinner. Faith is simply this: that we trust in the mercy of God on account of Christ alone as our only hope for salvation. This Paul says in his letter to the church at Rome: “What then shall we say that Abraham, our forefather according to the flesh, discovered in this matter? If in fact, Abraham was justified by works, he had something to boast about—but not before God. What does Scripture say? ‘Abraham believed God, and it was credited to him as righteousness.’ Now to the one who works, wages are not credited as a gift but as an obligation. However, to the one who does not work but trusts God who justifies the ungodly, their faith is credited as righteousness.” This faith, or trust, is not a work of our own, but a work of God within us. Thus, Martin Luther describes it this way: “Faith is and indeed must be a steadfastness (ein steadfasten) of the heart, which does not waver, wobble, shake, tremble, or doubt, but stands firm and is sure of its case. Do not think lightly of faith. It is a work that is of all works the most excellent and the most difficult. Through it alone you will be saved, even though you were obliged to do without all other works. For it is the work of God, not of man as Paul teaches in Ephesians 1:19: ‘and what is the immeasurable greatness of his power toward us who believe, according to the working of his great might.’ The other works He performs without our co-operation and through us; This alone He works within us and without our co-operation (sine nobis).”
(Luther, Martin, and Ewald M. Plass. What Luther Says, An Anthology. Saint Louis: Concordia Pub. House, 1959.)
The Solus Christus, Christ Alone, of the Reformation is not just a theoretical matter; it is a question of life and death. The Scriptures present Jesus Christ as the only mediator between the holy God and sinful man. “For there is one God, and there is one mediator between God and men, the man Christ Jesus...” (1 Tim 2:5). God saves sinners propter Christum (on account of Christ alone), or solus Christus, only because of Christ. This is the heart of the matter. The Biblical claim is that the Law of God justly stands over the children of Adam. We are to love our neighbor in a particular way, the way described in the Ten Commandments. We cannot do this fully, even in the most outward way, not even as Christians with the Holy Spirit within us. But even if we could, it would still not be enough to justify us before God. The Law commands us to love our neighbor “from the heart.” “Having purified your souls by your obedience to the truth for a sincere brotherly love, love one another earnestly from a pure heart...” (1 Pet 1:22), without any vested interest on our part. Our obedience to the Law in the case of our neighbor is to be purely for our neighbor’s good, not in any way for our good. Anyone who does not measure up to this unchanging and non-negotiable standard of God’s Law stands under God’s just condemnation and wrath now and forever. Apart from a God-given, Law-satisfying mediator, every one of us stands before the righteous God as guilty and justly condemned by His just Law. Someone is going to have to satisfy divine justice, but we have not done so. Nor can we do so. Someone is going to have to pay the penalty for our sin because we cannot pay it. Thus Christ alone is our only hope for salvation.
(Modified from Rod Rosenbladt, Christ Alone)
Soli Deo Gloria
Soli Deo Gloria is the slogan that developed out of the Protestant Reformation to communicate the belief that it is God and God alone Who is to receive the glory for the wonders of His work of our redemption. By confessing Soli Deo Gloria, Christians acknowledge that all of the benefits of this earthly life, as well as the free gift of their salvation and the life everlasting, have come to them by God’s hand alone. This realization causes the Christian to proclaim that all the credit, merit, and glory ought to be ascribed solely to God. Even the Christian’s trust in the mercy of God on account of Christ, which we call faith, is a gift of God and not a part of any human work. As the Scriptures say: “For I am not ashamed of the gospel, for it is the power of God for salvation to everyone who believes, to the Jew first and also to the Greek.” (Rom 1:16) And also, “So faith comes from hearing, and hearing through the word of Christ.” Also, “You did not choose me, but I chose you and appointed you that you should go and bear fruit and that your fruit should abide, so that whatever you ask the Father in my name, he may give it to you.” (John 15:16) Salvation, and every good gift is of the Lord from beginning to end. Yes, I must believe. Yes, I must respond. Yes, I must receive Christ. But for me to say “yes” to any of those things, my heart must first be changed by the eternal and efficacious power of God the Holy Spirit given through the proclaimed Word that is Christ. Thus we confess, Soli Deo Gloria.