Sola Scriptura-Scripture Alone
The Reformation doctrine of sola Scriptura, or the Reformation doctrine of the relation between Scripture and tradition, affirms that Scripture is to be understood as the sole source of divine revelation, the only inspired, infallible, final, and authoritative norm of faith and practice. Why? Because Scripture is “God-breathed” (2 Tim. 3:16). In other words, what Scripture says, God says. There is, therefore, a basic ontological difference between Scripture (God’s Word) and any creaturely words. Scripture is metaphysically unique. Scripture is to be interpreted in and by the church, and it is to be interpreted within the hermeneutical context of the rule of faith (Acts 15).

Sola Fide-Faith Alone
Often referred to as “the material cause” of the Reformation, the doctrine of justification sola fide (by faith alone) was a key point of debate between the Protestant Reformers and the Roman Catholic Church in the sixteenth century, and it has remained a point of disagreement ever since. It is also important to note here that for Rome, justification is by faith, but it is not by faith alone. For Rome, faith is necessary, but faith is not sufficient. Recall that for Rome, the instrumental cause of justification is baptism. The Reformers argued, on the contrary, that the sole instrument of justification is faith, and that even this faith is a gift of God. It is by grace (Rom. 3:28; 5:1; Eph. 2:8).

The Reformed doctrine of justification is clearly expressed in the classic Reformed confessions and catechisms of the sixteenth and seventeenth centuries. The Westminster Larger Catechism, for example, provides a concise statement of the biblical doctrine:
Question 70: What is justification?
Answer: Justification is an act of God’s free grace unto sinners, in which he pardons all their sins, accepts and accounts their persons righteous in his sight; not for any thing wrought in them, or done by them, but only for the perfect obedience and full satisfaction of Christ, by God imputed to them, and received by faith alone.

Sola Gratia-Grace Alone
In the early fifth century, a theological controversy occurred that would forever shape the thinking of the church. In his Confessions, Augustine of Hippo wrote in the form of a prayer the words: “Give what Thou commandest and command what Thou will.”  The Protestant doctrine of sola gratia is found in all of the major Reformed confessions. It underlies everything said regarding the state of the fallen sinner, election, calling, regeneration, conversion, justification, and more. The point that the Reformers wanted to make in the sixteenth century is the same point that Augustine made in the fifth. We are not saved by pulling ourselves up by our bootstraps. The fallen sinner is not a drowning man who merely needs to do his part by reaching out to grab the life preserver tossed by God. No, the sinner is in a far more serious condition. He cannot grab a life preserver because he is not merely drowning. He is a cold, dead, lifeless corpse on the bottom of the sea. If he is to be saved, he will not be able to cooperate with God. His salvation will be an act of pure grace, and grace alone, on the part of God (Eph. 2:8).

Sola Christus-Christ Alone
The Reformers and their heirs were intent on proclaiming Jesus Christ and Him crucified (1 Cor. 2:2). They recognized that because Christ is the only way of salvation for man, He is central to the message of the Bible (Acts 4:12). Their books were Christ-centered. Their sermons were Christ-centered. Their worship was Christ-centered. All of this was in stark contrast to the man-centered religion of late medieval Roman Catholicism. If we are to see a new Reformation in our day, we too must believe and confess the biblical doctrine of solus Christus.

Christ alone, and not the church, is our only Mediator (Westminster Larger Catechism Q. 181). As Huldrych Zwingli proclaimed, “Christ is the only way of salvation of all who were, are now, or shall be.” In Article 54 of his Sixty-Seven Articles (1523), Zwingli explicitly contrasts the Roman sacramentalist view with solus Christus: “Christ has borne all our pain and travail. Hence, whoever attributes to works of penance what is Christ’s alone, errs and blasphemes God.” The Westminster Confession of Faith affirms that Christ alone is the object of our faith: “the principal acts of saving faith are accepting, receiving, and resting upon Christ alone for justification, sanctification, and eternal life, by virtue of the covenant of grace” (XIV.2).

Sola Deo Gloria
Soli Deo gloria is not precisely parallel to the other four solas because in one sense, it is both the beginning and the end of the other four. The Holy Spirit inspired the Scriptures to the glory of God alone. Christ humbled Himself to the point of death and was raised and exalted to the right hand of the Father to the glory of God alone. Grace and mercy are offered to rebellious sinners to the glory of God alone. Justification is by faith alone to the glory of God alone. Soli Deo gloria, therefore, is central. As the Westminster Confession of Faith explains: “God hath all life, glory, goodness, blessedness, in and of Himself.” He is the God of glory (Acts 7:2). He also manifests His glory in the works of creation and redemption, most significantly in the person and work of Jesus Christ, the Lord of glory (1 Cor. 2:8).

God also glorifies Himself in and through the church. We as believers are called to do whatever we do to the glory of God (1 Cor. 10:31). We are to use our gifts to serve one another “in order that in everything God may be glorified through Jesus Christ” (1 Pet. 4:10–11). The Psalms are filled from beginning to end with ascriptions of praise to the glory of God, and this demonstrates where the focus of the church’s worship should be. Worship does not exist for our entertainment. Worship exists for the glory of God alone.

            











Excerpts from Dr. Keith Mathison, professor of systematic theology.