by Louis Berkhof
a. The relation of faith to justification. Scripture says that we are justified dia pisteos, ek pisteos, or pistei (dative), Rom. 3:25,28,30; 5:1; Gal. 2:16; Phil. 3:9. The preposition dia stresses the fact that faith is the instrument by which we appropriate Christ and His righteousness. The preposition ek indicates that faith logically precedes our personal justification, so that this, as it were, originates in faith. The dative is used in an instrumental sense. Scripture never says that we are justified dia ten pistin, on account of faith. This means that faith is never represented as the ground of our justification. If this were the case, faith would have to be regarded as a meritorious work of man. And this would be the introduction of the doctrine of justification by works, which the apostle opposes consistently, Rom. 3:21,27,28; 4:3,4; Gal. 2:16,21; 3:11. We are told indeed that Abraham’s faith was reckoned unto him for righteousness, Rom. 4:3,9,22; Gal. 3:6, but in view of the whole argument this surely cannot mean that in his case faith itself as a work took the place of the righteousness of God in Christ. The apostle does not leave it doubtful that, strictly speaking, only the righteousness of Christ imputed to us, is the ground of our justification. But faith is so thoroughly receptive in the appropriation of the merits of Christ, that it can be put figuratively for the merits of Christ which it receives. “Faith” then is equivalent to the contents of faith, that is, to the merits or the righteousness of Christ.
It is often said, however, that the teachings of James conflict with those of Paul on this point, and clearly support the doctrine of justification by works in Jas. 2:14-26. Various attempts have been made to harmonize the two. Some proceed on the assumption that both Paul and James speak of the justification of the sinner, but that James stresses the fact that a faith which does not manifest itself in good works is no true faith, and therefore is not a faith that justifies. This is undoubtedly true. The difference between the representations of Paul and James is unquestionably due partly to the nature of the adversaries with which they had to deal. Paul had to contend with legalists who sought to base their justification, at least in part, on the works of the law. James, on the other hand, joined issue with Antinomians, who claimed to have faith, but whose faith was merely an intellectual assent to the truth (2:19), and who denied the necessity of good works. Therefore he stresses the fact that faith without works is a dead faith, and consequently not at all a faith that justifies. The faith that justifies is a faith that is fruitful in good works. But it may be objected that this does not explain the whole difficulty, since James explicitly says in verse 24 that a man is justified by works and not only by faith, and illustrates this by the example of Abraham, who was “justified by works in that he offered up Isaac” (verse 21). “Thou seest,” says he in verse 24, “that faith wrought with his works, and by works was faith made perfect.” It is quite evident, however, that in this case the writer is not speaking of the justification of the sinner, for Abraham the sinner was justified long before he offered up Isaac (cf. Gen. 15), but of a further justification of the believing Abraham. True faith will manifest itself in good works, and these works will testify before men of the righteousness (that is, the righteousness of life) of him that possesses such a faith. The justification of the just by works confirms the justification by faith. If James actually meant to say in this section of his letter that Abraham and Rahab were justified with the justificatio peccatoris, on the basis of their good works, he would not only be in conflict with Paul, but would also be self-contradictory, for he explicitly says that Abraham was justified by faith.
b. Theological terms to express the relation of faith to justification. There are especially three terms that come into consideration here.
(1) Instrumental cause. This name was very generally used at first, but afterwards met with considerable opposition. The question was raised, whether it was God’s instrument or man’s. And it was said: It cannot be God’s, since the faith referred to is not God’s faith; neither can it be man’s, for justification is not a deed of man, but of God. We should bear in mind, however, (a) that according to the plain teaching of the Bible we are justified by faith, dia pisteos, and that this dia can only be understood in an instrumental sense, Rom. 3:28; Gal. 3:8; (b) that the Bible explicitly says that God justifies the sinner by faith, and therefore represents faith as God’s instrument, Rom. 3:30; and (c) that faith is also represented as the instrument of man, as the means by which he receives justification, Gal. 2:16. Faith can be regarded as the instrument of God in a twofold sense. It is a gift of God wrought in the sinner unto justification. Moreover, by working faith in the sinner, God carries the declaration of pardon into his heart or conscience. But faith is also an instrument of man by which he appropriates Christ and all His precious gifts, Rom. 4:5; Gal. 2:16. This is also the representation of the matter which we find in the Belgic Confession,[Art. XXII.] and in the Heidelberg Catechism.[Questions 60 and 61.] By faith we embrace Christ and remain in contact with Him who is our righteousness. The name “instrumental cause” is regularly used in Protestant Confessions. Yet some Reformed theologians prefer to avoid it, in order to guard themselves against the danger of giving the impression that justification is in any way dependent on faith as a work of man.
(2) Appropriating organ. This name expresses the idea that by faith the sinner appropriates the righteousness of Christ and establishes a conscious union between himself and Christ. The merits of Christ constitute the dikaioma, the legal basis on which the formal declaration of God in justification rests. By faith the sinner appropriates the righteousness of the Mediator already imputed to him ideally in the pactum salutis; and on the basis of this he is now formally justified before God. Faith justifies in so far as it takes possession of Christ. The name “appropriating organ” includes the instrumental idea, and is therefore perfectly in harmony with the statements found in our confessional standards. It has an advantage over the more common name in that it excludes the idea that faith is in any sense the basis for justification. It can be called an appropriating organ in a twofold sense: (a) It is the organ by which we lay hold on and appropriate the merits of Christ, and accept these as the meritorious ground of our justification. As such it logically precedes justification. (b) It is also the organ by which we consciously apprehend our justification and obtain possession of subjective justification. In this sense it logically follows justification. On the whole this name deserves preference, though it should be borne in mind that, strictly speaking, faith is the organ by which we appropriate the righteousness of Christ as the ground of our justification, rather than the organ by which we appropriate justification itself.
(3) Conditio sine qua non. This name, suggested by some Reformed theologians, did not meet with great favor. It expresses the idea, which is perfectly true in itself, that man is not justified apart from faith, and that faith is an indispensable condition of justification. The name expresses nothing positive, and is, moreover, liable to misunderstanding.