The interpretation timeline
James 5:5 Douay-Rheims

You have feasted upon earth: and in riotousness you have nourished your hearts, in the day of slaughter.

A.D. 407 – 1871 6 witnesses

Patristic

before A.D. 750
407
A.D.
John Chrysostom Patristic
A.D. 347–407
“What then? Has luxury been condemned? It certainly has—so why do you continue to strive for it? A man has made bread, but the excess has been trimmed away. A man has made wine, but the excess has been cut off there also. God desires that we should pray not for impure food but for souls set free from excess. For everything that God has created is good, and nothing which has been received with thanks is to be despised.”
Source

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“Ye have lived in pleasure on the earth,.... This is said of other rich men; for all that is here said is not to be understood of the same individuals, but some things of one, and some of another; some made no use of their riches, either for themselves, or others; some did make use of them, and employed the poor, and then would not give them their wages; and others lived a voluptuous and luxurious life, indulged themselves in carnal lusts and pleasures, and gratified the senses by eating, drinking, gaming, and so were dead while they lived. The phrase suggests, that their pleasures were but short lived, but for a season, even while they were on earth; and that hereafter they would not live in pleasure: and been wanton; through the abundance and plenty of good things, their delicious way of living, and the swing of pleasures which they took; the allusion is to fatted beasts, which being in good pastures, grow fat and wanton: ye have nourished your hearts as in a day of slaughter, when beasts were slain for some extraordinary entertainment, or for the solemn festivals and sacrifices the Jews, when they lived more deliciously than at other times; and then the sense is, that these rich men fared sumptuously every day; every day was a festival with them; they indulged themselves in intemperance; they ate and drank, not merely what was necessary, and satisfying, and cheering to nature, but to excess, and gorged, and filled themselves in an extravagant manner: the Syriac version, instead of "hearts", reads "bodies" and one copy reads, "your flesh": and the last phrase may be rendered, as it is in the same version, "as unto", or "for the day of slaughter"; and so the Arabic version, "ye have nourished your hearts, as fattened for the day of slaughter": like beasts that are fattened in order to be killed, so were they preparing and fitting up by their sins for destruction.”
Source
1832
A.D.
Adam Clarke Methodist
1762–1832
“Ye have lived in pleasure - Ετρυφησατε. Ye have lived luxuriously; feeding yourselves without fear, pampering the flesh. And been wanton - Εσπαταλησατε· Ye have lived lasciviously. Ye have indulged all your sinful and sensual appetites to the uttermost; and your lives have been scandalous. Ye have nourished your hearts - Εθρεψατε· Ye have fattened your hearts, and have rendered them incapable of feeling, as in a day of slaughter, ἡμερᾳ σφαγης, a day of sacrifice, where many victims are offered at once, and where the people feast upon the sacrifices; many, no doubt, turning, on that occasion, a holy ordinance into a riotous festival.”
Source
1863
A.D.
1796–1863
“G. P. "Ye have lived in pleasure on the earth, and been wanton : ye have nourished your hearts, as in a day of slaughter." This is understood of days of sacrifice, which were times of great festivity. The rich freely indulged in ban- queting.”
1871
A.D.
1871
“Translate, "Ye have luxuriated . . . and wantoned." The former expresses luxurious effeminacy; the latter, wantonness and prodigality. Their luxury was at the expense of the defrauded poor (Jam 5:4). on the earth--The same earth which has been the scene of your wantonness, shall be the scene of the judgment coming on you: instead of earthly delights ye shall have punishments. nourished . . . hearts--that is glutted your bodies like beasts to the full extent of your hearts' desire; ye live to eat, not eat to live. as in a day of slaughter--The oldest authorities omit "as." Ye are like beasts which eat to their hearts' content on the very day of their approaching slaughter, unconscious it is near. The phrase answers to "the last days," Jam 5:3, which favors ALFORD'S translation there, "in," not "for."”
Source

Undated

date unknown
date
unknown
Glossa Ordinaria Medieval
“You have feasted. Nor have you sinned only by gathering superfluously, etc., up to and of the other crimes which the Jews had committed.”
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.