The interpretation timeline
Psalm 79:17 Douay-Rheims

Things set on fire and dug down shall perish at the rebuke of thy countenance.

A.D. 430 – 1771 3 witnesses 5 excerpts

Patristic

before A.D. 750
430
A.D.
Augustine of Hippo Patristic
A.D. 354–430
“Psalm 79 [LXX] is similarly titled "For the things that shall be changed." In this psalm, among other things, is written, "look down from heaven and see; visit this vineyard and perfect what your right hand has planted and on the son of man whom you have confirmed for yourself." This is the vineyard of which it is said, "You have brought a vineyard out of Egypt." Christ did not plant another; by his coming he changed that one into a better vineyard. Accordingly, we find in the Gospel: "He will utterly destroy those evil men, and will let out the vineyard to other vine dressers." The Gospel does not say, "He will uproot and will plant another," but "this same vineyard he will let out to other vine dressers." The city of God and congregation of the children of promise must be filled with the same community of saints by the death and succession of mortal beings and at the end of the world will receive its due immortality in all people. This same thought is expressed differently by means of the fruitful olive tree in another psalm, which says, "But I as a fruitful olive tree in the house of God, have hoped in the mercy of God forever, yea, for ever and ever." It was not because the unbelievers and the proud had been broken away and the branches were on that account unfruitful and the wild olive of the Gentiles was ingrafted that the root of the patriarchs and prophets died. Isaiah says, "For if your people, O Israel, shall be as the sand of the sea, a remnant of them shall be saved," but through him about whom the psalm says, "and on the son of man whom you have confirmed for yourself," and about whom is reiterated, "Let your hand be on the man of your right hand: and on the son of man whom you have confirmed for yourself. And we depart not from you." Through this Son of man, Christ Jesus, and from his remnant, that is, the apostles and the many others from among the Israelites who have believed in Christ as God, and with the increasing number of Gentiles, the holy vineyard is being completed. Thus, in the passing of the old rites and in the institution of the new, the title of the psalm, "For the things that shall be changed," is fulfilled.”
Source
“"Things burned with fire, and dug up, by the rebuke of Thy countenance shall perish" (ver. 16). What are the things burned with fire and dug up which shall perish from the rebuke of His countenance? Let us see and perceive what are the things burned with fire and dug up. Christ hath rebuked what? Sins: by the rebuke of His countenance sins have perished. Why then are sins burned with fire and dug up? Of all sins, two things are the cause in man, desire and fear. Think, examine, question your hearts, sift your consciences, see whether there can be sins, except they be either of desire, or of fear. There is set before thee a reward to induce thee to sin, that is, a thing which delighteth thee; thou doest it, because thou desirest it. But perchance thou wilt not be allured by bribes; thou art terrified with menaces, thou doest it because thou fearest. A man would bribe thee, for example, to bear false witness. Countless cases there are, but I am setting before you the plainer cases, whereby ye may imagine the rest. Hast thou hearkened unto God, and hast thou said in thy heart, "What doth it profit a man, if he gain the whole world, but of his own soul suffer loss?" I am not allured by a bribe to lose my soul to gain money. He turneth himself to stir up fear within thee, he who was not able to corrupt thee with a bribe, beginneth to threaten loss, banishment, massacres, perchance, and death. Therein now, if desire prevailed not, perchance fear will prevail to make thee sin. ...What had evil fear done? It had dug up, as it were. For love doth inflame, fear doth humble: therefore, sins of evil love, with fire were lighted: sins of evil fear were dug up. On the one hand, evil fear doth humble, and good love doth light; but in different ways respectively. For even the husbandman interceding for the tree, that it should not be cut down, saith, "I will dig about it, and will apply a basket of dung." The dug trench doth signify the godly humility of one fearing, and the basket of dung the profitable squalid state of one repenting. But concerning the fire of good love the Lord saith, "Fire I have come to send into the world." With which fire may the fervent in spirit burn, and they too that are inflamed with the love of God and their neighbour. And thus, as all good works are wrought by good fear and good love, so by evil fear and evil love all sins are committed. Therefore, "Things set alight with fire and dug up," to wit, all sins, "by the rebuke of Thy countenance shall perish."”
Source
“This grace He placed "in Him in whom we have obtained a lot, being predestinated according to the purpose of Him who worketh all things." And thus as He worketh that we come to Him, so He worketh that we do not depart. Wherefore it was said to Him by the mouth of the prophet, "Let Thy hand be upon the man of Thy right hand, and upon the Son of man whom Thou madest strong for Thyself, and we will not depart from Thee." This certainly is not the first Adam, in whom we departed from Him, but the second Adam, upon whom His hand is placed, so that we do not depart from Him. For Christ altogether with His members is-for the Church's sake, which is His body-the fulness of Him. When, therefore, God's hand is upon Him, that we depart not from God, assuredly God's work reaches to us (for this is God's hand); by which work of God we are caused to be abiding in Christ with God-not, as in Adam, departing from God. For "in Christ we have obtained a lot, being predestinated according to His purpose who worketh all things." This, therefore, is God's hand, not ours, that we depart not from God. That, I say, is His hand who said, "I will put my fear in their hearts, that they depart not from me."”
Source

Scholastic

c. 1100 – 1500
1105
A.D.
Rashi Jewish
1040–1105
“Burned with fire [and] cut off Heb. כסוחה, an expression of (Lev. 25:4): “You shall not prune (תזמר), which Onkelos renders: לא תכסח. they perish constantly; they continually perish from the rebuke of Your face and Your anger.”

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“So will not we go back from thee,.... From thy fear, as the Targum; or from thy service, as Kimchi; doing as above would encourage them to stand before the Lord, and worship him; which they could not do, if he marked their sins, and demanded satisfaction from them for them; but if he looked to his Son and their surety, and took it from him, this would encourage their faith and hope, and give them boldness in his presence, and attach them to his service: quicken us, and we will call upon thy name; the people of God are sometimes dead and lifeless in their frames, and in the exercise of grace and discharge of duty, and have need of the quickening influences of the Spirit and grace of God; and which are necessary to a fervent calling upon the name of the Lord in prayer, and without which none will stir up themselves so to do. Kimchi interprets this of quickening, or of raising to life, from the death of the captivity; and so Abarbinel, who thinks also that it respects the resurrection of the dead in the times of the Messiah.”
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.