The interpretation timeline

Ps 18:8

How this passage has been read — the sources, oldest to newest.

From the early Church Fathers to now.

1 Patristic · 2 Jewish · 1 Catholic

Ps 18:8 · Douay-Rheims
“The law of the Lord is unspotted, converting souls: the testimony of the Lord is faithful, giving wisdom to little ones.”
Patristic before A.D. 750
430
A.D.
Augustine of Hippo Patristic
A.D. 354–430
“"The statutes of the Lord are right, rejoicing the heart" [Psalm 19:8]. All the statutes of the Lord are right in Him who taught not what He did not; that they who should imitate Him might rejoice in heart, in those things which they should do freely with love, not slavishly with fear. "The commandment of the Lord is lucid, enlightening the eyes." "The commandment of the Lord is lucid," with no veil of carnal observances, enlightening the sight of the inner man.”
Source
675 years pass — nothing from this stretch is hosted yet
Scholastic c. 1100 – 1500
1105
A.D.
Rashi Jewish
1040–1105
“The law of the Lord is perfect That too illuminates like the sun, as is written at the end of the topic: “enlightening the eyes,” and Scripture states (in Prov. 6:23): “For a commandment is a candle and the Torah is light.” Another explanation: and none is hidden from its heat on the Day of Judgment, [as is stated in Malachi 3:19]: “And the sun that comes shall burn them up.” But the law of the Lord is perfect; it restores the soul to ways of life and it protects those who study it from that burning, as is stated (ibid. verse 20): “And the sun of mercy shall rise with healing...for you who fear My Name.” the testimony of the Lord is faithful It is faithful to testify for those who study it. restoring the soul It [the law] restores it [the soul] from the ways of death to the ways of life. The law, the testimony, the orders, the commandments, the fear, and the judgments total six, corresponding to the six orders of the Mishnah. Between each name [of God] are five words including the name itself, corresponding to the Five Books of the Pentateuch. And so [the Psalmist] concludes: “true, altogether just.” They are altogether devised with kindness and truth. making the simple one wise It gives wisdom to the simple.”
Source
1235
A.D.
Radak Jewish
c. 1160–1235
“The Law of the Lord: – Why does he join the idea of the Law with that of the sun? His meaning is, that as the heavens and the sun and the spheres are witnessing to and declaring the glory of God and His wisdom, so the Law and the Commandments which He has commanded His people Israel witness to His wisdom and uprightness, as it says (Deut. 4:8), “(What great nation is there) that hath statutes and judgments so righteous as all this Law?” And further he says that as the heavens and the sun benefit the world, and through them the world continues to exist, so is the Law, which is perfect and restores the soul, and upon which (depends) the preservation of the soul as the preservation of the world (depends) upon the sun; for the soul in the body is as a stranger in a foreign land who has none to help or assist him, for the agents which minister to the body are for the most part such as follow after the appetites, and she (the soul) is as a solitary one and captive amongst them. So also says Solomon, who compares her to a poor wise man (Koh. 9:15). And notice the Law restoreth the soul in that it teaches man the right way and draws him away from worldly desires and from many stumbling-blocks. And notice it restoreth the soul from captivity and confinement to her (rightful) birth and the place of her glory. And David declares in respect of the Law and the commandments and the judgments, their truth and uprightness. Now the Law (תורה, lit. teaching) is the orderly setting forth of the commandment with reference to the manner of its performance; and this (may be understood) from the general sense of such passages as “I have not obeyed the voice of my teachers (מורי)” (Prov. 5:13); “and to teach (להורת) He hath put in his heart” (Exod. 35:34); for (the Torah) teaches the ordering of a thing, as “the law (Torah) of the beast and of the fowl” (Lev. 11:46); “the law of the leper” (ibid. 14:2); “the law of her that beareth” (ibid. 12:7); “the law of him that hath an issue” (ibid. 15:32); “the law of the Nazirite” (Num. 6:21). Nevertheless the book (itself) is called by the name of the Law (Torah) from Genesis to Deuteronomy, as is written (Deut. 31:9): “And Moses wrote this Law”; “Take this book of the Law” (ibid. 26); (this is) because it narrates the history of Creation and also narrates the affairs of the Fathers; it likewise sets forth every single one of the things which teach about God: that He is the founder of the world, of His goodness and of the beings created by Him, and His providence in the case both of the good and the evil. He mentions the commandments also – that is, what God commanded (man) to do in the ways of the service of God and love of Him, as of a master who gives commandment to his servant. And the testimony – that is, what was testimony between Israel and God, that they had accepted Him for (their) God, and He had accepted them for a peculiar people; cf “the ark of the testimony” (Exod. 25:22); “the tent of the testimony” (Num. 17:23). For the commandments about which Israel received commands – these are the testimony, and also the tables which had on them the Ten Words, which contain (are) the whole Law entirely; and these Words were a great testimony to Israel when they saw His glory on Mount Sinai in the thunderings and lightning; and that great sight was the testimony to them and their children for ever. So also the observance of the Sabbath and the festivals is to them a testimony and a sign and memorial; the (year of) release also, and the jubilee – all is a testimony to them and their children for ever; as it says, “for all the earth is Mine” (Exod. 19:5); “they are My servants” (Lev. 25:55). He says: the precepts of the Lord in respect of the commandments of the understanding which God has ordained and put in the heart; and about these the understanding teaches. He says fear because it is the beginning of the commandments and their root; for the servant, unless he fear the master, will not do his behests, and perfect fear is in secret. He says also judgments – that is, the rules (that are to be observed) between a man and his fellow. Now it is to be noticed he has mentioned for us all the different kinds of commandments except “statutes” (חקים). The reason is that he applies to them (such epithets as) perfect, restoring the soul, sure, making wise the simple, right, rejoicing the heart, pure, enlightening the eyes, clean, true, righteous altogether, to be desired, and sweet; all which it is only admissible to apply to the commandments whose reason is clear and apparent; whereas the “statutes,” such as those regarding the eating of swine's flesh and wearing mixed stuffs and the like, whose reason is not clear to all how could it be said of them that they are to be desired, are sweet and pure? And although they are such to him to whom their reasonableness is apparent, yet this is not apparent to the great majority of men. And he says: is perfect: – because it is altogether complete; not one thing is lacking in it of all the things a man needs in this world and in the world to come. And he says: restoring the soul: – in the sense we have interpreted. He says also: The testimony of the Lord is sure: – for there is no falsehood in it; for the Glory rested on Israel in the sight of all Israel, there was none to contradict or gainsay. And he says: making wise the simple: – For all the things of the Tabernacle (embodied) wonderful wisdom; for no (mere) thing(s) were the lamp-stand and the altars and the curtains. And so all the things (sc. of the Tabernacle) entirely teach of wisdom, so that the wise call it (the Tabernacle) the middle world, for it is a likeness of the upper world and of the little (lower) world. So also the observance of the Sabbath is a (source of) great wisdom, for on its account man will investigate the question of the world's renewal and all the work of creation, and that (results in) Natural Science. It (Scripture) says also of the Law (Deut. 4:6): “for-this is your wisdom and your understanding in the eyes of all the people” etc. Again, it says (ibid.): “Surely this great nation is a wise and understanding people.” Yet although he distributes these attributes and says of the Law that it is perfect and restores the soul, and of the testimony that it is sure, making wise the simple, and similarly of the rest, all share the attributes. He does not apply this attribute to one (only); the same applies also to the other, except that each attribute is attached closely to the substantive nearest it; and that it is necessary to study it in the light of the attribute in accordance with the way we have interpreted and shall interpret.”
Source
614 years pass — nothing from this stretch is hosted yet
Post-Reformation c. 1650 – 1900
1849
A.D.
1774–1849
“The law. As the sun gives light to the world, so the law serves to direct mankind, and is another most powerful motive for us to praise God. This raises our hearts and minds still more perfectly to him, recalling us from our wanderings, and confirming our knowledge. Light is necessary for the body, and the law for the soul. The prophet admires eight characteristics of this divine law, which he designates by different names; as in the 118th psalm, some things relate only to the evangelical law, which converts souls, (Berthier) and lasts for ever, ver. 10. (Haydock) — The law of nature and of Moses are nevertheless also commended, (Theodoret) inasmuch as the morality is always the same; and some faith in Christ, to come, or already past, is requisite under every dispensation. Hence he is called the Lamb slain from the beginning. [Apocalypse xiii. 8.] Implicit faith would suffice for the less informed, before our Saviour’s coming; but now, under the light of the gospel, we must express our belief in his incarnation, as well as in the blessed Trinity. More is required of those to whom more has been given. [Luke xii. 48.] (Haydock) — Unspotted. Hebrew and Septuagint, “irreprehensible.” (Calmet) — Who indeed could pretend to find any fault with it, since it comes from God? (Haydock) — The laws of men are imperfect, and liable to change. Those of Draco were too sanguinary, and gave place to Solon’s, which were deemed too mild, &c. How happy would all be if they would embrace the law of the gospel! (Berthier) — Converting. Hebrew, “tranquillizing souls,” (Menochius) by keeping the passions under. (Haydock) — Testimony, declaring the will of God to men. — Little ones. The simple, and the wicked; as both are so called. (Calmet) — Pethi, “easily persuaded.” (Menochius) — It directs the former, and keeps the latter in awe by punishment. (Calmet) — All, in general, must confess their ignorance, and want of the divine law, to reap any benefit from it. (Haydock) — This is the first lesson which it imparts. (Berthier) — The law is most pure in itself, whether we understand that given to Moses, or the gospel. But the latter makes the observers unspotted, by the grace which the Holy Ghost communicates to them, though all who barely read and know the law, have no share in this happiness. God is the author of salvation, sweetly inviting all by the perfections of his law, which confers light and gladness, to co-operate with grace, that they may obtain the promised reward, ver. 12., and 2 Timothy iv. 6. (Worthington) — The like grace was offered from the beginning, so that none will ever be punished who has not deserved it, having had the means to perform his duty. (Haydock)”
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.