The interpretation timeline
Psalm 118:167 Douay-Rheims

My soul hath kept thy testimonies: and hath loved them exceedingly.

A.D. 430 – 1771 3 witnesses

Patristic

before A.D. 750
430
A.D.
Augustine of Hippo Patristic
A.D. 354–430
“"My soul hath kept Thy testimonies, and I have loved them exceedingly:" or, as some copies read, "hath loved them," understanding, "my soul" (ver. 167). The testimonies of God are kept, while they are not denied. This is the office of Martyrs, for testimonies are called Martyria in Greek. But since it profiteth nothing, even to be burnt with flames without charity, he addeth, "and I have loved them exceedingly." ...For he who loveth, keepeth them in the Spirit of truth and faithfulness. But generally, while the commandments of God are kept, they against whose will they are kept become our foes: then, indeed, His testimonies also must be kept courageously, lest they be denied when the enemy persecuteth.”
Source
749
A.D.
John of Damascus Patristic
A.D. 676–749
“Obtain the same thing for yourself and strive to advance toward it; for it is able to raise you from earth to heaven. You will not advance in it without preparation or [solely] by chance. First cleanse your soul of every passion and wipe it as clean of every evil as a newly cleansed mirror. Remove far from you every recollection of wrong and anger, which most of all prevents our daily prayers from reaching God. Also remove from your heart the offenses of everyone who has ever sinned against you. Giving wings to your prayer with mercy and compassion for the poor, approach God with fervent tears. Praying in this way you will be able to say with the blessed David, who, although he was king and burdened with countless cares, cleansed his soul of all passions: "I hated and abhorred iniquity, but I loved your law. Seven times a day I praised you because of the judgments of your righteousness." My soul kept your testimonies and I loved them very much. Let my prayer draw near to you, Lord; enable me to understand your word.”
Source

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“My tongue shall speak of thy word,.... Of the word of God in general; of the truth of it, which he knew by certain experience; of the purity of it, tending to promote holiness of heart and life; of the power and efficacy of it, enlightening his mind, and working effectually in him; of the profit of it, to his learning, to his instruction, comfort, and refreshment; of the preciousness of it, being of more worth than thousands of gold and silver; and of the pleasantness of it, being sweeter than the honey or honeycomb, and more to be esteemed than one's necessary food; and of the promises of it in particular, of the worth and value of them, of their suitableness and use, and of the faithful fulfilment of them; and of the doctrines of the word, especially those which relate to the grace of God, and salvation by the Messiah; and also of the precepts of the word, as follows: for all thy commandments are righteousness; not only righteous, but righteousness itself, being strictly just and equitable in the highest sense; and not only some of them, but all of them; see Psa 119:128. Aben Ezra's paraphrase of the words is, "I will teach the children of men thy word, that they may know that thy commandments are righteousness;'' which is not amiss: and to the same sense is Kimchi's note, who observes, that author of the Masorah interprets it of praise; as if he had said, My tongue shall praise thy word, because all of it is righteousness.”
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.