To this we answer: the Lord Jesus Christ, by His priceless blood, redeemed from the curse of the law both all of us and Moses himself with Aaron, and all the prophets and patriarchs.
Do not think that I say this from my own reasoning. Scripture itself bears witness to it, saying: ‘Christ alone died for all’ (cf. 2 Cor 5:14).
If for all, then also for Moses and for all the prophets. None of them could destroy the ancient handwriting written against us and nail it to the Cross (cf. Col 2:14).
They too were justified and saved by faith.”
Before men, those who held to the law may have seemed righteous, like the Pharisees, who justified themselves before men. But they were not righteous before God.
Before Him no one is righteous without faith. Faith, both before the law and after the law was given, blessed and justified (cf. Blessed Theophylact).
As soon as the law remained without faith, it took its place among all religions existing on earth. It did not give what those who held to it hoped to find in it.
Of the same worth is everything a man might devise for his justification, and whatever he might hope to lean upon for his salvation, apart from faith in the Lord Jesus Christ.
Labors are necessary. Yet they receive truly cleansing and life-giving power only from faith. Without it, they are nothing.
Here are the remarkable words of Blessed Jerome concerning this thought: “It must be noted that the Apostle did not say, ‘Every man shall live by faith,’ lest he give occasion to despise the works of virtue.
Rather, he said, ‘The righteous shall live by faith.’ Thus the one who is to live by faith cannot come to faith, or live in it, otherwise than by first becoming righteous, or by becoming so at the same time.
By purity of life he ascends to faith as by steps. Therefore one may be righteous and yet not alive until he receives the faith of Christ.
Recall the words of the apostle Paul about himself: ‘as to the righteousness of the law, I was blameless’ (cf. Phil 3:6). Thus Paul was then righteous in the law, but he could not yet be alive.
He did not have Christ in himself, who says, ‘I am the life’ (cf. Jn 11:25). He began to live only after he believed.
Let us apply this to ourselves. Just as it is said, ‘The righteous shall live by faith,’ let us say: the pure lives by faith, the wise lives by faith, the courageous lives by faith.
Regarding all the other virtues, let us pronounce a similar judgment. This is against those who, not believing in Christ, think themselves strong, wise, temperate, and righteous in general.
Let us know that no one can be alive without Christ, without whom every virtue is not blameless.”
The words “the righteous shall live by faith” are contained in the prophecies of St. Habakkuk. Yet there they are cited as a generally known proposition.
Therefore there is no need to explain their meaning from that place in the prophet, especially since that place is somewhat obscure, whereas these words are very clear in themselves.
St. Paul cites them more than once in his Epistles. From this one should conclude that they often circulated on the lips of those who understood the matter of the law as it should be understood.