The interpretation timeline
2 Samuel 1:21 Douay-Rheims

Ye mountains of Gelboe, let neither dew, nor rain come upon you, neither be they fields of firstfruits: for there was cast away the shield of the valiant, the shield of Saul as though he had not been anointed with oil.

A.D. 397 – 1875 7 witnesses

Patristic

before A.D. 750
397
A.D.
Ambrose of Milan Patristic
A.D. 339–397
“What a virtuous action was that when David wished rather to spare the king his enemy, though he could have injured him! How useful, too, it was, for it helped him when he succeeded to the throne. For all learned to observe faith in their king and not to seize the kingdom but to fear and reverence him. Thus, what is virtuous was preferred to what was useful, and then usefulness followed from what was virtuous. But that he spared him was a small matter; he also grieved for him when slain in war and mourned for him with tears, saying, "You mountains of Gilboa, let neither dew nor rain fall upon you; you mountains of death, for there the shield of the mighty is cast away, the shield of Saul. It is not anointed with oil but with the blood of the wounded and the fat of the warriors. The bow of Jonathan turned not back, and the sword of Saul returned not empty. Saul and Jonathan were lovely and very dear, inseparable in life, and in death they were not divided. They were swifter than eagles, they were stronger than lions. You daughters of Israel, weep over Saul, who clothed you in scarlet with your ornaments, who put on gold upon your apparel. How are the mighty fallen in the midst of the battle! Jonathan was wounded even to death. I am distressed for you, my brother Jonathan; very pleasant have you been to me. Your love came to me like the love of women. How have the mighty fallen and the longed-for weapons perished!" What mother could weep thus for her only son as he wept here for his enemy? Who could follow his benefactor with such praise as that with which he followed the man who plotted against his life? How affectionately he grieved, with what deep feeling he bewailed him! The mountains dried up at the prophet's curse, and a divine power filled the judgment of him who spoke it. Therefore the elements themselves paid the penalty for witnessing the king's death.”
Source

Scholastic

c. 1100 – 1500
1105
A.D.
Rashi Jewish
1040–1105
“Mountains in Gilboa. The mountains in Gilboa. Nor fields [yielding enough for] baking offerings. There will be no harvest among [the fields] that have the amount [that necessitates] making the baking offering. Because there, the shield of soldiers spit out. They had shields made of skins and when they went to war, they smeared them with oil so that a weapon hitting [the shield] should slip [off of it]. As it is said [in Scriptures] "Get up officers, smear [your] shield with oil. And here this is what the Lamentation means, "There, the shield of soldiers spit out," it spit out its oil and [the oil] did not stick to it and rendered [the shield] as if it wasn't smeared with oil. All [uses of the word] הַגְעָלָה is a language of rejecting what had been put into it as [we find] "His oxen will impregnate, [the seed] will not be rejected."”
Source

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“Ye mountains of Gilboa,.... On which fell Saul and his sons, and many of the people of Israel, Sa2 1:6, let there be no dew, neither let there be rain upon you; which is not to understood as a real imprecation; for David would never curse any part of the land of Israel, for which he had so great a regard; but only as a poetical figure, expressing his concern for, and abhorrence of what happened on those mountains; much less did this in reality take place, as some have feigned, as if never dew nor rain descended on them (t) afterwards; which has been refuted by travellers, particularly Borchard (u), who, speaking of this mountain, says, that as he was upon it, there was such a violent shower fell, that he was wet through his clothes; and in the year 1273, laying all night upon this hill, there was a great dew fell upon him: nor fields of offerings; of heave offerings; the meaning is, that he could wish almost that those hills were not fruitful, and that they brought no fruit to perfection, so much as that heave offerings for the service of the sanctuary might be taken; which is expressive of great sterility and scarcity, see Joe 1:13, for there the shield of the mighty is vilely cast away; mighty men were obliged to cast away their shields and flee, which were greatly to their reproach and scandal, and to that of the whole nation: it was always reckoned very scandalous, and a great crime, even punishable with death, to cast away a shield, both with the Greeks and others (w): yea, also the shield of Saul, as though he had not been anointed with oil; as if he was not the anointed king of Israel, but a common soldier: or else this respects his shield, as if that was not anointed, as shields used to be, that they might be smooth and glib, and missile weapons, as arrows and others, might not pass through them, but slide off, see Isa 21:5; though Gersom gives a different turn, that Saul's shield being in continual use, needed not to be anointed, as those did which for a time had been laid aside. Abarbinel interprets these words thus, that he, who was the shield of the mighty, even Saul himself, was vilely cast away, or become loathsome; and that his shield was anointed, not with oil, but with the blood of the slain, and the fat of the mighty, connecting them with the words following. (t) Cippi Heb. p. 34. (u) Apud Hottinger not. in ib. see Bunting's Travels, p, 131. (w) Isocrates de Pace, p. 364. Horat. Carmin. l. 2. Ode 7. Tacitus de Mor. German. c. 6. Alex. ab Alex. Genial. Dier. l. 2. c. 13.”
Source
1832
A.D.
Adam Clarke Methodist
1762–1832
“As though he had not been - In stead of בלי beli, Not, I read כלי keley, Instruments. Anointed with oil - See the observations at the end. Sa2 1:18, etc.: He bade them teach the children of Judah the use of the bow, קשת kasheth. The word kasheth is to be understood of the title of the song which immediately follows, and not of the use of the bow, as our translation intimates. Many of David's Psalms have titles prefixed to them; some are termed Shosannim, some Maschil, Nehiloth, Neginoth, etc., and this one here, Kadesh or The Bow, because it was occasioned by the Philistine archers. Sa1 31:3 : "And the archers hit him." But especially respecting the bow of Jonathan, "which returned not back from the blood of the slain," as the song itself expresses. And David could not but remember the bow of Jonathan, out of which "the arrow was shot beyond the lad," Sa1 20:36. It was the time when that covenant was made, and that affection expressed between them "which was greater than the love of women." On these accounts the song was entitled Kasheth, or The song of the Bow, and David commanded the chief musicians, Ethan, Heman, and Jeduthun, to teach the children of Judah to sing it. "It is written in the book of Jasher." Sept., επι βιβλιου του ευθους, "in the book of the upright." ספרא דאוריתא siphra deoraitha, "The book of the Law." - Jonathan. The Arabic says, "Behold it is written in the book of Ashee; this is the book of Samuel;" the interpretation of which is, "book of songs or canticles." This lamentation is justly admired as a picture of distress the most tender and the most striking; unequally divided by grief into longer and shorter breaks, as nature could pour them forth from a mind interrupted by the alternate recurrence of the most lively images of love and greatness. His reverence for Saul and his love for Jonathan have their strongest colourings; but their greatness and bravery come full upon him, and are expressed with peculiar energy. Being himself a warrior, it is in that character he sees their greatest excellence; and though his imagination hurries from one point of recollection to another, yet we hear him - at first, at last, everywhere - lamenting, How are the mighty fallen! It is almost impossible to read the noble original without finding every word swollen with a sigh or broken with a sob. A heart pregnant with distress, and striving to utter expressions descriptive of its feelings, which are repeatedly interrupted by an excess of grief, is most sensibly painted throughout the whole. Even an English reader may be convinced of this, from the following specimen in European characters: - 19. Hatstsebi Yishrael al bamotheycha chalal; Eych naphelu gibborim; 20. Al taggidu begath, Al tebasseru bechutsoth Ashkelon; Pen tismachnah benoth Pelishtim, Pen taalozenah benoth haarelim. 21. Harey baggilboa al tal, Veal matar aleychem usedey terumoth; Ki sham nigal magen Gibborim. Magen Shaul keley Mashiach bashshamen! 22. Middam chalalim, mecheleb gibborim, Kesheth Yehonathan lo nashog achor; Vechereb Shaul lo thashub reykam. 23. Shaul Vihonathan, Hannee habim vehanneimim bechaiyeyhem, Ubemotham lo niphradu. Minnesharim kallu, mearayoth gaberu! 24. Benoth Yishrael el Shaul becheynah; Hammalbishchem shani im adanim, Hammaaleh adi zahab al lebushechen. 25. Eych naphelu gibborim bethoch hammilchamah! Yehonathan al bamotheycha chalal! 26. Tsar li aleycha achi Yehonathan, naamta li meod Niphleathah ahabathecha li meahabath nashim! 27. Eych naphelu gibborim, Vaiyobedu keley milchamah! The three last verses in this sublime lamentation have sense and sound so connected as to strike every reader. Dr. Kennicott, from whom I have taken several of the preceding remarks, gives a fine Latin version of this song, which I here subjoin: - O decus Israelis, super excelsa tua Miles! Quomodo ceciderunt Fortes! Nolite indicare in Gatho, Nolite indicare in plateis Ascalonis: Ne laetentur filiae Philistaeorum, Ne exultent filiae incircumcisorum. Montes Gilboani super vos Nec ros, nec pluvia, neque agri primitiarum; Ibi enim abjectus fuit clypeus fortium. Clypeus Saulis, arma inuncti olec! Sine sanguine Militum, Sine adipe Fortium. Arcus Jonathanis non retrocesserat; Gladiusque Saulis non redierat incassum. Saul et Jonathan Amabiles erant et jucundi in vitis suis, Et in morte sua non separati. Prae aquilis veloces! Prae leonibus fortes! Filiae Israelis deflete Saulem; Qui coccino cum deliciis vos vestivit, Qui vestibus vestris ornamenta imposuit aurea! Quomodo ceciderunt Fortes, in medio belli! O Jonathan, super excelsa tua Miles! Versor in angustiis, tui causa, Frater mi, Jonathan! Mihi fuisti admodum jucundus! Mihi tuus amor admodum mirabilis, Mulierum exuperans amorem! Quomodo ceciderunt fortes, Et perierunt arma belli! Dissertation I., p. 122. In Sa2 1:21 I have inserted כלי keley for בלי beli. Dr. Delaney rightly observes that the particle בלי beli is not used in any part of the Bible in the sense of quasi non, as though not, in which sense it must be used here if it be retained as a genuine reading: The shield of Saul as though it had not been anointed with oil. In a MS. written about the year 1200, numbered 30 in Kennicott's Bible, כלי keley is found; and also in the first edition of the whole Hebrew Bible, printed Soncini 1488. Neither the Syriac nor Arabic versions, nor the Chaldee paraphrase, acknowledge the negative particle בלי beli, which they would have done had it been in the copies from which they translated. It was easy to make the mistake, as there is such a similarity between ב beth and כ caph; the line therefore should be read thus: The shield of Saul, weapons anointed with oil. In Sa2 1:22 נשוג nashog, to obtain, attain, seems to have been written for נסוג nasog, to recede, return. The former destroys the sense, the latter, which our translation has followed, and which is supported by the authority of 30 MSS., makes it not only intelligible but beautiful. In Sa2 1:19, Sa2 1:22, and Sa2 1:25, חלל and חללים chalal and chalalim occur, which we translate the Slain, but which Dr. Kennicott, I think from good authority, renders soldier and soldiers; and thus the version is made more consistent and beautiful. חלל chalal signifies to bore or pierce through; and this epithet might be well given to a soldier, q.d., the Piercer, because his business is to transfix or pierce his enemies with sword, spear, and arrows. If it be translated soldiers in the several places of the Old Testament, where we translate it Slain or Wounded, the sense will be much mended; see Jdg 20:31, Jdg 20:39; Psa 89:11; Pro 7:26; Jer 51:4, Jer 51:47, Jer 51:49; Eze 11:6, Eze 11:7; Eze 21:14. In several others it retains its radical signification of piercing, wounding, etc. After these general observations I leave the particular beauties of this inimitable song to be sought out by the intelligent reader. Much has been written upon this, which cannot, consistently with the plan of these notes, be admitted here. See Delaney, Kennicott, Lowth, etc.; and, above all, let the reader examine the Hebrew text.”
1849
A.D.
1774–1849
“Fruits, which may be offered to the Lord. Inanimate things could not offend, nor does David curse them in earnest. But (Tirinus) nothing could more strikingly express his distress and grief, than this imprecation. It is false that those mountains have since been barren. This canton is one of the most fruitful of the country. (Brochard.) (Calmet) — Job (iii.) speaks with the same animation, and curses his day. (Menochius) — Of Saul, or “Saul, the shield of his people, was cast away, as,” &c. Protestants, “ as though he had not been anointed with oil.” (Haydock) — He is not reproached for throwing away his buckler, for nothing was deemed more shameful. The ancient Germans would not allow such a one to enter their temples or places of assembly. (Tacitus, mor. Germ) — A woman of Sparta told her son, when she delivered one to him, “Bring this back, or be brought upon it” dead. Impositu scuto referunt Pallanta frequentes. (Virgil, Æneid x.) (Sanctius) (Calmet) — As though. Hebrew seems to have sh, instead of s, (as it is in several manuscripts correctly, in noshug ) and bli, instead of cli, (Delany) as the former word seems no where else to signify quasi non; and the Syriac, Arabic, and Chaldean omit the negation. It might therefore be the shield of Saul, “the arms of him who has been anointed with oil.” (Kennicott) — Some would refer this unction to the shield, (Vatable) as this was some times done: (Menochius) but the reflection would be here too trifling. (Calmet)”
Source
1871
A.D.
1871
“let there be no dew, neither let there be rain--To be deprived of the genial atmospheric influences which, in those anciently cultivated hills, seem to have reared plenty of first-fruits in the corn harvests, was specified as the greatest calamity the lacerated feelings of the poet could imagine. The curse seems still to lie upon them; for the mountains of Gilboa are naked and sterile. the shield of the mighty is vilely cast away--To cast away the shield was counted a national disgrace. Yet, on that fatal battle of Gilboa, many of the Jewish soldiers, who had displayed unflinching valor in former battles, forgetful of their own reputation and their country's honor, threw away their shields and fled from the field. This dishonorable and cowardly conduct is alluded to with exquisitely touching pathos.”
Source
1875
A.D.
Keil & Delitzsch Lutheran
1861–1875
“Even nature is to join in the mourning. May God withdraw His blessing from the mountains upon which the heroes have fallen, that they may not be moistened by the dew and rain of heaven, but, remaining in eternal barrenness, be memorials of the horrible occurrence that has taken place upon them. בגּלבּע הרי is an address to them; and the preposition בּ with the construct state is poetical: "mountains in Gilboa" (vid., Ewald, 289, b.). In עליכם ... אל the verb יהי is wanting. The following words, תרוּמות וּשׂדי, are in apposition to the foregoing: "and let not fields of first-fruit offerings be upon you," i.e., fields producing fruit, from which offerings of first-fruits were presented. This is the simplest and most appropriate explanation of the words, which have been very differently, and in some respects very marvellously rendered. The reason for this cursing of the mountains of Gilboa was, that there the shield of the heroes, particularly of Saul, had been defiled with blood, namely the blood of those whom the shield ought to defend. גּעל does not mean to throw away (Dietrich. ), but to soil or defile (as in the Chaldee), then to abhor. "Not anointed with oil," i.e., not cleansed and polished with oil, so that the marks of Saul's blood still adhered to it. בּלי poetical for לא. The interpolation of the words "as though" (quasi non esset unctus oleo, Vulgate) cannot be sustained.”
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.