Isaiah 42:16

(Verse 10, 11 and following) Sing to God a new song: his praise from the ends of the earth: you who descend into the sea, and its fullness; islands and their inhabitants. Let the desert and its cities lift up: in the houses shall Cedar dwell, praise you inhabitants of Petra, they shall shout from the top of the mountains. They shall give glory to the Lord, and his praise in the islands they shall declare. The Lord shall go forth as a mighty man, as a warrior he shall stir up zeal: he shall shout and cry out: he shall strengthen himself against his enemies. I have always kept silent, I have been quiet, I have been patient: like a woman in labor, I will speak. I will scatter and devour together. I will make mountains and hills desolate, and I will dry up all their vegetation, and I will turn rivers into islands, and I will dry up ponds. And I will lead the blind on a path they do not know, and I will make them walk on paths they have not known. I will turn darkness into light in front of them, and I will make crooked paths straight. These are the things I will do for them, and I will not abandon them. They have turned back: let them be confounded with confusion, that trust in idols, that say to molten things: You are our gods. Sing ye to the Lord a new canticle: his praise is in the church of the saints. Let Israel rejoice in him that made him: and let the children of Sion be joyful in their king. Let them praise his name in choir: let them sing to him with the timbrel and the psaltery. For the Lord is well pleased with his people: and he will exalt the meek unto salvation. The saints shall rejoice in glory: they shall be joyful in their beds. The high praises of God shall be in their mouth: and two-edged swords in their hands. To execute vengeance upon the nations, chastisements among the people. To bind their kings with fetters, and their nobles with manacles of iron. To execute upon them the judgment that is written: this glory is to all his saints. Alleluia. They will give glory to God, his virtues will be proclaimed in the islands. The Lord God of hosts will go forth and crush the battle, he will stir up zeal, and he will cry out against his enemies with strength. Have I been silent from the beginning, will I always be silent and endure? As one in labor, I have acted with patience; I will burst forth and dry up together, I will lay waste the mountains and hills, and I will dry up all their grass. And I will turn rivers into islands, and I will dry up marshes. And I will lead the blind along a way they do not know, and I will make their paths uneven; I will turn darkness into light for them, and crooked things into straight paths. I will speak these words to them, and I will not abandon them, but they have turned backward; you will be confused with confusion, you who trust in idols, who say that they are gods. He who had said: what was first, behold, it has come; I also announce new things: before they arise, I will make them heard to you; and he had promised that he would say what they did not know: what are those new things, he states in the following discourse, commanding the Apostles and the Apostolic men to sing a new song, not in the antiquity of the letter; but in the novelty of the spirit. Not only in the old Instrument, but also in the new; and His praise reaches to the ends of the earth. For He has come forth from the highest heaven and His circuit is to the highest point of it (Psalm XIX). The sound of the Apostles has gone out into all the earth, and their words to the ends of the world. Or according to the Septuagint: Glorify His name in the ends of the earth, that the name of Christ may be announced to the nations in the whole world. But who are those who should sing a new song, the following words declare: You who go down to the sea and sail upon it, or the fullness of the sea. For seeing the apostles, Jesus by the sea of Galilee, mending their nets, called and sent them into the great sea (Luke 5); to make fishermen of fish, who preached the Gospel from Jerusalem to Illyria and Spain: taking the power of the Roman city itself in a short time. Or certainly they descended into the sea and sailed it; enduring the storms and persecutions of this age. Also the islands and their inhabitants, whether understanding the diversity of nations or the multitude of churches. Let the desert and its cities raise their voices, as we mentioned earlier. Whether the desert and its villages rejoice, and Cedar, which was once an uninhabitable region beyond Arabia of the Saracens. And the inhabitants of Petra, which is also a city of Palestine. But this signifies that the deserted people of the nations, previously bound by the ignorance of God and the errors of idolatry, should be converted to the praises of the Lord. Whether because Cedar is interpreted as darkness, and according to the Apostle (I Cor. X) Christ is the rock, it is commanded to all believers, that those who were previously in darkness, and now believe in the Lord Savior, shout from the top of the mountains, and openly proclaim Christ, to whom it is also said above (Ad cap. XL, 9): Ascend to the high mountain, you who proclaim the good news to Zion. Lift up your voice with strength, you who proclaim good news to Jerusalem. And I will set his glory among the islands, of which we have spoken before. And the prophetic discourse describes the glorious advent of the Savior, about which even the Apostle Paul speaks: According to the illumination of the glory of the great God and our Savior Jesus Christ (2 Corinthians 4; 2 Timothy 1:10); and he compares him to a mighty man who will fight against his adversaries, arousing zeal. Of whom it is also prophesied in the Song of Deuteronomy: They have made me jealous with what is not a god; they have provoked me with their idols. So I will make them jealous with those who are not a nation; I will provoke them with a foolish nation (Deuteronomy 32:21). He will also shout and cry out against his enemies, openly condemning their faithlessness, and with loud voice proclaiming: I have been silent, I have always kept silent, I have been patient, or as the Septuagint translated: I have been silent, will I always be silent? (Ecclesiastes 3:7) That which is said through Solomon may be fulfilled: A time to keep silent, and a time to speak. And the meaning is: I have often borne with you as you have transgressed for a long time; but because I remained silent before, I will by no means keep silent any longer. And just as a woman giving birth brings forth a child into the light and makes what was previously hidden in the depths of her womb open and visible, so too I will reveal my pain and the deceit that I have always harbored regarding your crimes, and I will expose your plans. And at once I will devour the entire nation and all the pride of your mountains and the swelling of your hills. And the grass, of which it was said: Truly the grass is the people, that is, both the leaders and the common people, I will reduce to a desert. What is added in the edition of Theodotion of the Septuagint, who had omitted these words (See above, Chapter IV, 7). And when I have dried you up from head to toe and wiped you out, then I will make the rivers of my teaching flow in the islands of the nations, and I will turn your lakes or marshes into dry land, so that there may be knowledge of the Scriptures among the nations and dryness of teaching among you. And I will lead the blind along a path they did not know, of whom we have also read above: I have made you a covenant of the people, a light of the nations, to open the eyes of the blind. They will be led along the way by which Christ speaks. I am the way, that is, the way of the knowledge of God, and I will make them walk on the prophetical paths. Then their darkness will be changed into light, and their faults will be turned into righteousness, so that they may understand what they read and with the eyes of their hearts may gaze upon the clear light of Christ in the Old Testament. At the same time, he adds: These words that I have spoken or will speak to them do not promise anything further in the future, but fulfill what I promised before. But when this was said, the Jewish people turned backward so as not to believe the promise, and in their errors they were confused and neglected the pledge of God, whom they had believed in before idols. Or when the fullness of the Gentiles has come in, then also the people of Israel will be converted (Rom. II), and they will repent of their error, by which they had served idols before. Or certainly after the calling of the Gentiles, they will return to the beginning: so that it may be said, all the Gentiles who did not want to believe in the Gospel will be confounded in their idols.

Again, God calls the people who suffer from unbelief and who are devoid of intellectual acuteness “the blind.” He promises to guide their steps on the way they do not know, for they failed to recognize the path of the truth but followed on the paths of error. “I will turn darkness into light for them.” After freeing them from their previous ignorance, I will deem them worthy of the knowledge of God, for ignorance is like darkness, whereas knowledge is analogous to the light. “And crooked things into straight.” For the difficult course of wisdom, of the governing of oneself and of justice, he has made an easy course, since he has attached the hope of future benefits to the efforts to claim virtue. “These are the words that I will fulfill for them; and I will not forsake them.” I will not cease to judge them worthy of these benefits, and I will lavish all kinds of care, even to the future.

The apostle John teaches how this is fulfilled: “We know that the Son of God came and gave understanding to us, that we might know the truth and be in his true Son.” And again, “Let us love, therefore, since God first loved us.” By loving us, God restores us to be his image, so that he might find the form of his own goodness in us. He grants that we ourselves might work what he works, indeed setting light to our minds and causing us to burn with the fire of his love, in order that we love not only him but also the things that he loves.