The interpretation timeline
Isaiah 54:14 Douay-Rheims

And thou shalt be founded in justice: depart far from oppression, for thou shalt not fear; and from terror, for it shall not come near thee.

1105 – 1875 6 witnesses

Scholastic

c. 1100 – 1500
1105
A.D.
Rashi Jewish
1040–1105
“go far away from oppression [Although grammatically this is the imperative, here it is the future,] like (supra 52:2) “Shake yourself from the dust.” You will be far away from those who oppress you. Printed editions of Rashi contain the following addendum: (go far away from oppression You will stay far from oppressing other peoples in the manner the wicked do, that they accumulate money through robbery, but you will not need to rob, for you will not fear poverty or straits, or ruin, for it shall neither come nor shall it approach you. [Abarbanel]) (With righteousness that you will perform, you will be established with an everlasting redemption, and you will be far from people’s oppression for you will not fear; you will not even have terror or fear of them, and you will be far from ruin, for it will not come near you. [Ayalah Sheluchah])”
Source
1167
A.D.
Ibn Ezra Jewish
1089–1167
תכנני Shalt thou be established. It is Hithpael. The ת is omitted and compensated by the Dagesh in the כ. In righteousness, etc. Israel will do justice to all, and will oppress no people, as the heathen nations are used to do. Thou shalt not fear. For the sin of oppression and violence deprives the state of its power.”
1256
A.D.
Thomas Aquinas Catholic
1225–1274
“Sing, O barren one. Here, against the casting down of things, he promises the remedy of exaltation: and first he promises a multitude against a paucity; second, the restoration of honor against confusion, do not fear; third, prosperity against former adversity, poor little one. Concerning the first he does three things. First he foretells the multitude of children, indicating the praise of thanksgiving: "O barren one" — Jerusalem, who do not bear; "because forsaken" — deserted; "sing" — to God, for the benefits granted. The gladness of those who praise: "sing forth praise" — for a song is the exultation of the mind broken forth into voice; and the greatness of the gladness: "neigh" — in the manner of a horse, unable because of the greatness to form a voice to express it. Jer. 31: Exult in gladness, Jacob. Ps. 146: Let praise of our God be pleasant and comely. And promising the multitude of children: "because many" — as if to say, your children will be multiplied more, although you are deserted, than that of the cities which have husbands for begetting. 1 Reg. 2: until the barren woman has borne very many, and she who had many children is weakened. Second he exhorts to the enlargement of the place, under the metaphor of a tent: "enlarge the place" — as to the ground on which it is extended; "the skins" — by which it is covered; "the cords" — by which the pegs are bound; "the nails" — by which the boards are joined, or the pegs themselves. And these are read to have been in the tabernacle of the covenant: Exod. 26, and 36. On account of this multitude of men it is fitting to seek a greater dwelling than the land of promise is. Above, 49: still the children of barrenness say, etc. Third he foretells the fulfillment of the exhortation: "for to the right hand" — as if to say, you shall spread yourself on every side: which was fulfilled in the time of the Maccabees, when certain cities from the region of Samaria, and from others, were added to the kingdom of the Jews. Gen. 24: may your seed possess the gates of your enemies. Do not fear. Here he promises the restoration of former honor, against the confusion which they had previously endured. Second, the firmness of the promise: as in the days of Noah. Concerning the first he does two things. First he promises the forgetting of the former confusion: "you shall not be confounded" — inwardly; "you shall not blush" — outwardly. "You shall be ashamed" — from the consideration of your baseness; "you shall forget" — because of the abundance of glory; "of youth" — when you sinned in the desert; "of widowhood" — when you were separated from God in the captivity of Babylon. Above, 45: you shall not be confounded, nor shall you blush. Sopho. 3: in that day you shall not be confounded for all your devisings. Second he promises the restoration of former honor: and first he sets down the restoration as to dominion, "because he shall rule"; above, 26: O Lord, they have possessed us; and as to marriage, "a forsaken wife." Jerem. 3: if a man put away his wife, and she depart from him and marry another man, shall she return to him any more? Second he promises the enlargement of honor as to the multitude of honors: "says the Lord" — "in a little" — you have suffered little in respect of the things which I, having mercy, shall bestow on you. 2 Corinth. 4: for that which is at present is momentary. And as to duration, "in a moment" — as if to say: for a brief time you have felt my anger, in respect of that in which I will have mercy on you. Above, 26: hide yourself a little while. But all these things that have been said are expounded mystically of the calling of the Gentiles: because the Gentile world, barren at first, afterward gathered many children, according to the Gloss. As in the days. Here he shows the firmness of the promise. And first from the likeness of the former promise: "I have sworn" — I have firmly determined, provided, however, that you remain in my precepts. Gen. 9: I will establish my covenant with you, and with your seed after you. Eccli. 44: the covenants of the age. Second, from the working of stable creatures: "for the mountains" — as if to say: it is easier for mountains and hills to be changed than for my words to be made void. Or by mountains and hills, the powerful of the world. Ps. 45: we will not fear, while the earth is troubled. Note on that word, "sing, O barren one," that there is a barrenness, first, of perverse action. Job 15: the congregation of the hypocrite is barren. Second, of sacred contemplation. Genes. 29: Rachel was barren. Third, of temporal tribulation. Above, 49: the children of barrenness shall still say in your ears. Likewise note, on that phrase "enlarge the tent," that the heart must be enlarged, first, on account of the greatness of the guest. Jerem. 23: do not I fill heaven and earth, says the Lord? Second, on account of the multitude of gifts. Below, 60: you shall see, and abound, and your heart shall be enlarged. Third, on account of the fulfilling of the way. Psalm. 118: I have run the way of your commandments. Likewise on that phrase "in great mercies," that the mercies to come are great: first because they are intrinsic. Rom. 8: I reckon that the sufferings of this time are not worthy to be compared to the glory to come that shall be revealed in us. Second, because they are eternal. 2 Cor. 4: for the things which are seen are temporal; but the things which are not seen are eternal. Third, because they are perfect. Luc. 1: for behold, from now on all generations shall call me blessed. Fourth, because they are extended to many. Luc. 14: a certain man made a great supper, and invited many. Fifth, because they are whole. Apoc. 21: God shall wipe away every tear from the eyes of the saints. Poor little one. Here he promises prosperity against adversity: and first he recalls the former adversity: "poor little one" — Jerusalem despoiled of goods; "by tempest" — by adversity. Above, 18: to a nation rent and torn I will send you. Second he promises future prosperity, both as to the abundance of goods, setting forth a metaphor: "behold I will lay" — as it were in a pavement, by the "stones," "precious," signifying men eminent in virtues, "in order," each one in his own order: Tob. 13: the gates of Jerusalem; and explaining it as to the doctrine of divine knowledge: "all" — Jer. 31: I will give my law in their bowels, and write it in their heart. As to the abundance of peace: "multitude." Psalm. 118: much peace have they that love your law. And as to the justice of works: "and in justice." Above, 1: Sion shall be redeemed in judgment; and they shall bring her back in justice. Second, as to the freedom from evils, promising first the escape from dangers: "depart" — that is, you shall depart, because you shall not suffer calumny. Ps. 71: he shall humble the slanderers. Second, the adherence of strangers: "behold, the sojourner" — because many from among the Gentiles going forth from captivity adhered. Below, 56: let not the son of the stranger, who adheres to the Lord, say: the Lord will divide me by separation from his people. Third, promising the destruction of enemies: "behold I." And first he shows the power of the one promising, setting forth a comparison: "the smith" — the persecutor, who blows upon the vessels in the fire of tribulation, adversaries, according to his own will: Job 41: his breath, coals; and explaining it: "I have created." 1 Reg. 2: the Lord kills and makes alive. Second he sets forth the promise: "every vessel" — that is, he will scatter every thing formed, as to those who assail by deeds; and "every tongue," as to those who assail by words. Above, 41: and they shall be as if they were not.”

Post-Reformation

c. 1650 – 1900
1849
A.D.
1774–1849
“Thee. The Cutheans rendered the Jews suspected, 1 Esdras iv. 2., and vi. 1”
1871
A.D.
1871
“righteousness--the characteristic of the reign of Messiah (Isa 11:4-5; Psa 72:2, Psa 72:4; Rev 19:11). far from oppression, &c.--far from suffering oppression; "for thou shall have nothing to fear."”
1875
A.D.
Keil & Delitzsch Lutheran
1861–1875
“In perfect keeping with this grace through righteousness, Jerusalem will then stand firm and impregnable. "Through righteousness wilt thou be fortified: be far from anxiety, for thou hast nothing to fear; and from terror, for it will not come near thee. Behold, men crowd together in crowds; my will is not there. Who crowd together against thee? - he shall fall by thee." Both the thought and action of Jerusalem will be righteousness then, and it will thereby acquire strength; תּכּונני is a pausal future hithpalel, with the ת of the reflective opening syllable assimilated (Ges. 53, 2, b). With this reciprocal influence of its moral character and imparted glory, it can, and is to keep far away from all thought of oppression and terror; for, through divine grace and a corresponding divine nature, it has nothing to fear. הן (Isa 54:15), when pointing to any transaction as possible (as, for example, in Job 12:14; Job 23:8), acquires almost the significance of a conditional particle (Ewald, 103, g). The equally hypothetical parallel clause is clothed in the form of an interrogative. For the verb gūr, the meaning "to gather together" (related to אגר), more especially to join together with hostile intention (cf., συνάγεσθαι, Rev 19:19; Rev 20:8), is sustained by Psa 56:7; Psa 59:4; and with גּרה, lacessere, it has nothing to do (Hitzig and Ewald). אתּך has the force of contra te, as in the case of verbs of combat. The first apodosis is this: "but it takes place entirely away from me," i.e., without and against my will; מאותי = מאתּי (as in Isa 59:21), and אותם = אתּם, are no sure signs of a later usage; for this alternation of the two forms of את is met with as early as Jos 14:12. The second apodosis is, "he will fall upon (or against) thee," or, as we should say, "founder," or "be wrecked." It is far more likely that this is the meaning of the words, than that they mean "he will fall to thy lot" (על נפל, like ל נפל elsewhere, to fall to a person); for the context here is a totally different one from Isa 45:14, and we look for nothing more than a declaration of the utter failure and ruin of the undertaking.”
Source
Modern · 1953 →

The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.