The interpretation timeline
James 5:11 Douay-Rheims

Behold, we account them blessed who have endured. You have heard of the patience of Job, and you have seen the end of the Lord, that the Lord is merciful and compassionate.

A.D. 407 – 1871 6 witnesses

Patristic

before A.D. 750
407
A.D.
John Chrysostom Patristic
A.D. 347–407
“It is a great thing if we can give thanks with great joy. But there is such a thing as giving thanks out of fear, and also such a thing as giving thanks in grief. This is what Job did when, in great suffering, he thanked God, saying: "The Lord has given, the Lord has taken away." Let no one say that he was not grieving over what had happened to him or that he did not feel it deeply. Do not take away the great praise due to the righteous.… How great is this praise? Tell me, in what circumstances do you bless Job? Is it when he had all those camels and flocks and herds? Or is it when he says: "The Lord has given and the Lord has taken away"? For the devil also harms us not in order to take our possessions away so that we have nothing left but so that when that happens he can force us to curse God because of it.”
Source
430
A.D.
Augustine of Hippo Patristic
A.D. 354–430
“James means: "Bear your temporal misfortunes as Job did, but do not hope for temporal goods as a reward for your patience, such as were returned to him double. Rather hope for the eternal goods which the Lord went before us to secure."”

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“Behold, we count them happy which endure,.... Affliction, with courage, constancy, and patience, and hold out to the end; for such shall be saved; theirs is the kingdom of heaven; they are happy now, and will be so hereafter: the Spirit of God, and of glory, now rests upon them; and it is an honour done them that they are counted worthy to suffer for Christ; and they will be glorified with him to all eternity; the consideration of which may serve to encourage and increase patience. Ye have heard of the patience of Job; from the account which is given of him, and his patience, in the book that bears his name; how he behaved under every trial, which came one upon the back of another; as the plundering of his substance, the loss of his children, and of the health of his body; and yet in all this Job sinned not, nor murmured against God, nor charged him foolishly, and was a mirror of patience; and though he afterwards let fall some expressions of impatience, yet he was humbled for them, and brought to repentance: this shows, that as the Apostle James, so the Jews, to whom he writes, believed that there had been really such a man as Job; and that the book which bears his name is an authentic piece of holy Scripture, and contains a narrative of matters of fact; or otherwise this reference to him would have been impertinent. How long Job endured the chastenings of the Lord cannot be said. The Jews (y) say they continued on him twelve months, which they gather from Job 7:3. And have seen the end of the Lord; that is, the happy end, or exodus, out of all his troubles; which the Lord gave "to him", as the Oriental versions add; for he gave him twice as much as he had before, and blessed his latter end more than his beginning, Job 42:10. Some understand this of the Lord Jesus Christ, both of his great patience in sufferings, in which he is an example to his people, and they would do well to look to, and consider him; and of the end of his sufferings, his glorious resurrection from the dead, and session at the right hand of God, where he is crowned with glory and honour; but the former sense is best: that the Lord is very pitiful and of tender mercy; as to Job, so to all his people; his paternal relation to them engages his pity towards them; nor does he willingly afflict them; and when he does, he sympathizes with them; he is afflicted with them, and in his pity redeems them; his heart moves towards them, and he earnestly remembers them, and works deliverance for them in his own time and way; and therefore it becomes them to be patient. (y) Seder Olam Rabba, c. 3. p. 9.”
Source
1832
A.D.
Adam Clarke Methodist
1762–1832
“We count them happy which endure - According to that saying of our blessed Lord, Blessed are ye when men shall persecute and revile you - for so persecuted they the prophets which were before you. Mat 5:11, Mat 5:12, etc. Ye have heard of the patience of Job - Stripped of all his worldly possessions, deprived at a stroke of all his children, tortured in body with sore disease, tempted by the devil, harassed by his wife, and calumniated by his friends, he nevertheless held fast his integrity, resigned himself to the Divine dispensations, and charged not God foolishly. And have seen the end of the Lord - The issue to which God brought all his afflictions and trials, giving him children, increasing his property, lengthening out his life, and multiplying to him every kind of spiritual and secular good. This was God's end with respect to him; but the devil's end was to drive him to despair, and to cause him to blaspheme his Maker. This mention of Job shows him to have been a real person; for a fictitious person would not have been produced as an example of any virtue so highly important as that of patience and perseverance. The end of the Lord is a Hebraism for the issue to which God brings any thing or business. The Lord is very pitiful, and of tender mercy - Instead of πολυσπλαγχνος, which we translate very pitiful, and which might be rendered of much sympathy, from πολυς, much, and σπλαγχνον, a bowel, (because any thing that affects us with commiseration causes us to feel an indescribable emotion of the bowels), several MSS. have πολυευσπλαγχνος, from παλυς, much, ευ, easily, and σπλαγχνον, a bowel, a word not easy to be translated; but it signifies one whose commiseration is easily excited, and whose commiseration is great or abundant.”
Source
1871
A.D.
1871
“count them happy-- (Mat 5:10). which endure--The oldest authorities read, "which have endured," which suits the sense better than English Version: "Those who in past days, like the prophets and Job, have endured trials." Such, not those who "have lived in pleasure and been wanton on the earth" (Jam 5:5), are "happy." patience--rather, "endurance," answering to "endure": the Greek words similarly corresponding. Distinct from the Greek word for "patience" Jam 5:10. The same word ought to be translated, "endurance," Jam 1:3. He here reverts to the subject which he began with. Job--This passage shows the history of him is concerning a real, not an imaginary person; otherwise his case could not be quoted as an example at all. Though he showed much of impatience, yet he always returned to this, that he committed himself wholly to God, and at last showed a perfect spirit of enduring submission. and have seen--(with the eyes of your mind). ALFORD translates from the old and genuine reading, "see also," &c. The old reading is, however, capable of being translated as English Version. the end of the Lord--the end which the Lord gave. If Job had much to "endure," remember also Job's happy "end." Hence, learn, though much tried, to "endure to the end." that--ALFORD and others translate, "inasmuch as," "for." pitiful . . . of tender mercy--The former refers to the "feeling"; the latter, to the act. His pity is shown in not laying on the patient endurer more trials than he is able to bear; His mercy, in His giving a happy "end" to the trials [BENGEL].”
Source

Undated

date unknown
date
unknown
Glossa Ordinaria Medieval
“The patience of Job. He does not say: the end of Job, to whom temporal things were restored, but the patience of Job. And the end of the Lord, because he invites them to suffer by the example of Job, and yet not that they should receive temporal things, as Job the old man, but eternal things, as Christ the new man. And the end of the Lord. You have heard by the reading, you have seen with your eyes him suffering long upon the cross, but you have also learned the glory of the resurrection and of the ascension by the preaching of the Gospel.”
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.