The interpretation timeline
Judges 9:15 Douay-Rheims

And it answered them: If indeed you mean to make me king, come ye and rest under my shadow: but if you mean it not, let fire come out from the bramble, and devour the cedars of Libanus.

A.D. 311 – 1849 5 witnesses

Patristic

before A.D. 750
311
A.D.
c. A.D. 260–311
“But lest I should appear to some to be sophistical, and to conjecture these things from mere probabilities, and to babble, I will bring forward to you, O virgins, from the Old Testament, written prophecy from the book of Judges, to show that I speak the truth, where the future reign of chastity was already clearly foretold.…Now it is clear that these things are not said of trees growing out of the earth. Inanimate trees cannot be assembled in council to choose a king since they are firmly fixed to the earth by deep roots. But on the whole these things are narrated concerning souls that—before the incarnation of Christ—luxuriated too deeply in transgressions, who approach God as beggars asking for mercy so that they may be governed by his pity and compassion. This mercy is what Scripture expresses by the figure of the olive, because oil is of great advantage to our bodies: it takes away our fatigue and ailments and offers light. For all lamplight increases when nourished by oil. So also God's mercies entirely dispel death, assist the human race and nourish the light of the heart. Consider the laws [which were in effect] from the first created man successively on to Christ. Weren't they imaginatively set forth in these words by the Scripture, in opposition to which the devil has deceived humanity? In it the fig tree has been associated with the command given to the man in paradise, because, when he was deceived, he covered his nakedness with the leaves of a fig tree; and the vine [has been related] to the instruction given to Noah at the time of the deluge, because he was mocked when overpowered by wine. The olive signifies the law given to Moses in the desert, because the prophetic grace, the holy oil, had failed from their inheritance when they broke the law. Lastly, the bramble aptly refers to the law that was given to the apostles for the salvation of the world: by their instruction we have been taught virginity, which is the only figure that the devil has not been able to make into a deceptive image. For this reason, also, the four Gospels have been given, because God has four times given the gospel to the human race and has instructed them by four laws, the times of which are clearly known by the diversity of the fruits. For the fig tree, on account of its sweetness and richness, represents the delights of man, which he had in paradise before the fall. Indeed, as we shall afterwards show, the Holy Spirit frequently takes the fruit of the fig tree as an emblem of goodness. But the vine, on account of the gladness produced by wine and the joy of those who were saved from wrath and from the deluge, signifies the change produced from fear and anxiety into joy. Moreover, the olive, on account of the oil that it produces, indicates the compassion of God, who again, after the deluge, bore patiently when people turned aside to ungodliness, so that he gave them the law and manifested himself to some, and nourished by oil the light of virtue, which is now almost extinguished.”
Source
430
A.D.
Augustine of Hippo Patristic
A.D. 354–430
“And no one has been so illiterate as to think that similar fables of Aesop, related for the same purpose, ought to be called lies. But also in the sacred writings such passages are found, as in the book of Judges the trees look for a king to rule over them and speak to the olive and the fig and the vine and the bramble. Surely, all this is invented in order that we may reach the matter intended by means of a narrative [that is] fictitious, to be sure, but bearing a true and not a false signification.”
Source

Scholastic

c. 1100 – 1500
1105
A.D.
Rashi Jewish
1040–1105
“If you genuinely. Because I qualify as a sovereign.”

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“And the bramble said unto the trees,.... Accepting of their offer at once: if ye in trust anoint me king over you; suspecting they were not hearty and cordial in their choice and call to the kingly authority over them: then come and put your trust in my shadow; promising protection to them as his subjects, requiring their confidence in him, and boasting of the good they should receive from him, as is common with wicked princes at their first entering on their office; but, alas! what shadow or protection can there be in a bramble? if a man attempts: to put himself under it for shelter, he will find it will be of no use to him, but harmful, since, the nearer and closer he comes to it, the more he will be scratched and torn by it: and if not, let fire come out of the bramble, and devour the cedars of Lebanon; signifying, that if they did not heartily submit to his government, and put confidence in him, and prove faithful to him, they should smart for it, and feel his wrath and vengeance, even the greatest men among them, comparable to the cedars of Lebanon; for thorns and brambles catching fire, as they easily do, or fire being put to them, as weak as they are, and placed under the tallest and strongest cedars, will soon fetch them down to the ground; and the words of the bramble, or Abimelech, proved true to the Shechemites, he is made to speak in this parable.”
Source
1849
A.D.
1774–1849
“Shadow or protection, Psalm xvi. 8., and Baruch i. 12. (Calmet) — Joatham hints at the insolence of Abimelech, (Haydock) and foretels that he and his foolish subjects will soon be at variance, and destroy each other. Fire is often put for war. The people of Sichem began soon to despise their new king, and he made war upon them, and destroyed their city; though the people afterwards took ample revenge, ver. 20. (Calmet) — Tyrants promise much, but their rage soon falls upon the more wealthy and powerful citizens, (Haydock) here signified by the cedars. (Menochius)”
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.