The interpretation timeline
Psalm 145:8 Douay-Rheims

The Lord enlighteneth the blind. The Lord lifteth up them that are cast down: the Lord loveth the just.

A.D. 389 – 1849 8 witnesses

Patristic

before A.D. 750
389
A.D.
A.D. 329–390
“She owed her recovery to none other than to [God] with the result that people were no less impressed by her unexpected recovery than by her misfortune. They concluded that the tragedy had happened for her glorification through sufferings—the suffering being human, the recovery superhuman. This will provide a lesson for people in the future who exhibit a high degree of faith in the midst of suffering and patience in calamity, but in a still higher degree experience the kindness of God that she received. To God's beautiful promise to the righteous "though he fall, he shall not be utterly broken," has been added a more recent one, "though he be utterly broken, he shall speedily be raised up and glorified." For if her misfortune was unreasonable, her recovery was extraordinary, so that health soon replaced the injury, and the cure became more celebrated than the illness.”
Source
430
A.D.
Augustine of Hippo Patristic
A.D. 354–430
“"The Lord looses them that are fettered; the Lord lifts up them that are dashed down; the Lord makes wise them that are blind" [Psalm 146:8]. Perfectly has he by this last sentence explained to us all the preceding ones: lest perchance, when he had said, "the Lord looses them that are fettered," we should refer it to those fettered ones, who for some crime are bound in irons by their masters: and in that he said, "He lifts up them that are dashed down," there should occur to our minds some one stumbling or falling, or thrown from a horse. There is another kind of fall, there are other kinds of fetters, just as there is other darkness and other light. Whereas he said, "He makes the blind wise;" he would not say, He enlightened the blind, lest you should understand this also in reference to the flesh, as the man was enlightened by the Lord, when He anointed his eyes with clay made with spittle, and so healed him: that you might not look for anything of this sort, when He is speaking of spiritual things, he points to a sort of light of wisdom, wherewith the blind are enlightened. Therefore in the same way as the blind are enlightened with the light of wisdom, so are the fettered set free, and those who are dashed down are lifted up. Whereby then have we been fettered? Whereby dashed down? Our body was once an ornament to us: now, we have sinned, and thereby have had fetters put on us. What are our fetters? Our mortality...."The Lord loves the righteous." And who are the "righteous"? How far are they righteous now?”
Source
435
A.D.
John Cassian Patristic
c. A.D. 360–435
“For it is not free will but the Lord who "looses those who are bound." It is not our strength, but the Lord who "raises those who have fallen." It is not our diligence in reading, but "the Lord who enlightens the blind" where the Greek says kyrios sophoi typhlous, that is, "the Lord makes wise the blind." It is not our care, but "the Lord who cares for the stranger." It is not our courage, but "the Lord who assists (or supports) all those who are down."”
Source
461
A.D.
Leo the Great Patristic
c. A.D. 400–461
“We not only do not hold back, but even encourage, compassion, wisely and divinely set up by the church, that even for such people you should pray to the Lord with us. We also, with tears of sorrow, have pity on the downfall of misled souls. Following the example of the apostle's compassion, "we are made weak with the weak," and "we weep with those who weep." We hope that the mercy of God may be gained with many tears and requisite satisfaction on the part of those who have lapsed. While we live in this body, no one's rehabilitation is to be despaired of. We should desire the amendment of all, with the Lord helping us, who "raises up those who have been broken down, sets captives free, gives sight to the blind," to whom is honor and glory "with the Father and with the Holy Spirit" forever and ever. Amen.”
Source

Scholastic

c. 1100 – 1500
1167
A.D.
Ibn Ezra Jewish
1089–1167
“"God" - See here that the meaning is [that] it is not appropriate that a man lean on another man and if a man is to be strengthened from him, [it should be that] he leans on him in his prayer to God(i.e. the man is a conduit for salvation which is requested in prayer to God), and so too if he is hungry or he is imprisoned [he will be saved], and so too if he gets an affliction of the eyes, or he was continually forced to stay in bed [because of sickness], he should not lean on a doctor. And the meaning of "God loves the righteous" is that he will guard them and they will not be oppressed or hungry or bound or blind or coerced.”
Source
1235
A.D.
Radak Jewish
c. 1160–1235
ה' פוקח עורים. "The Lord opens the eyes of the blind": Those who are blind from an eye disease, He will heal them. This ailment is mentioned because blindness, like imprisonment, prevents a person from moving from their place. Alternatively, it can mean those blinded by extreme distress, as suffering is likened to darkness and salvation to light. There are many verses in Scripture that attest to this. Similarly, He did for Israel, who were blinded in exile, as it is said, "We grope for the wall like the blind, and we grope as if we had no eyes; we stumble at noonday as in the night." ה' זוקף כפופים. "The Lord raises those who are bowed down":, meaning the poor, as we have explained. ה' אהב צדיקים."The Lord loves the righteous":, and similarly, He loved Israel who were righteous among the nations.”
Source

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“The Lord openeth the eyes of the blind,.... Who are corporeally blind; the eyes of many such were opened by Christ when here on earth, and one who was born blind; and such who are spiritually blind as to any knowledge of divine things, of God in Christ, of the way of life and salvation by Christ, of the Spirit and his operations, of their state and condition by nature, or of the things of the Gospel; the eyes of many such he opens so as to see their sin and danger, their want of righteousness, and need of Christ, and salvation by him; this is usually done by means of the ministry of the word, which is as an eye salve; but the work is Christ's, and a work of almighty power it is; see Isa 35:4; the Lord raiseth them that are bowed down; as he did in a literal sense the poor woman that was bowed together, Luk 13:11, and as he does in a spiritual sense such as are heavy laden with sin, and pressed with the burden of it; that are depressed with Satan's temptations, and labour under sore afflictions and exercises; all which he supports his people under, and delivers them out of; and cheers and refreshes their souls with discoveries of his love and grace unto them; see Psa 145:14; the Lord loveth the righteous; not self-righteous persons; these are not loved by God the Father, who preferred a publican to one of them; nor by Christ, who came not to call them to repentance; nor by the Spirit, who reproves and convinces men of self-righteousness; nor by angels, who rejoice at one sinner that repents more than over ninety and nine just persons who in their own opinion need no repentance: but such who are righteous through Christ's righteousness imputed to them, and there are none righteous in any other way; and these Christ loves, not for any righteousness in them, or done by them; nor does his love flow from his own righteousness upon them, for he loved them from all eternity; and his engaging and undertaking to work out a righteousness for them, and the bringing in of that righteousness, were the fruits and effects of his love to them, and evidences of it; he suffered for them when they were in themselves unjust; he died for them when sinners, ungodly, and enemies; nevertheless, as they are clothed with his perfect righteousness, and are introduced unto him and presented before him in this raiment of needle work, this clothing of wrought gold, this fine linen clean and white; he takes delight and pleasure in them, and they appear a glorious church, without spot or wrinkle, or any such thing.”
Source
1849
A.D.
1774–1849
“Enlighteneth. Hebrew, “openeth the eyes. ” Septuagint, “gives wisdom to the blind.” Many of these favours seem to be understood in a spiritual sense, and allude to the times of Christ, when these miracles were performed. (Berthier) (Isaias xxxv. 5., and Matthew xi. 5. (Calmet)”
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.