The interpretation timeline
James 1:16 Douay-Rheims

Do not err, therefore, my dearest brethren.

A.D. 108 – 1871 5 witnesses

Patristic

before A.D. 750
108
A.D.
c. A.D. 50–107
“Do not err, my brethren. Those that corrupt families shall not inherit the kingdom of God. If, then, those who do this as respects the flesh have suffered death, how much more shall this be the case with any one who corrupts by wicked doctrine the faith of God, for which Jesus Christ was crucified! Such an one becoming defiled [in this way], shall go away into everlasting fire, and so shall every one that hearkens unto him.”
Source

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“Do not err, my beloved brethren. For to make God the author of sin, or to charge him with being concerned in temptation to sin, is a very great error, a fundamental one, which strikes at the nature and being of God, and at the perfection of his holiness: it is a denying of him, and is one of those damnable errors and heresies, which bring upon men swift destruction; and therefore to be guarded against, rejected, and abhorred by all that profess any regard unto him, his name and glory. Do not err, my beloved brethren. For to make God the author of sin, or to charge him with being concerned in temptation to sin, is a very great error, a fundamental one, which strikes at the nature and being of God, and at the perfection of his holiness: it is a denying of him, and is one of those damnable errors and heresies, which bring upon men swift destruction; and therefore to be guarded against, rejected, and abhorred by all that profess any regard unto him, his name and glory. James 1:17 jam 1:17 jam 1:17 jam 1:17Every good gift and every perfect gift,.... Whether of nature, providence, or grace, and especially the latter; spiritual gifts given along with Christ, or spiritual blessings in him; every such gift is; as the Vulgate Latin version reads, the "best" gift; better than those which only relate to the present life: and is "perfect" such as the gifts of righteousness, remission of sins, adoption, regeneration, and eternal life. The Jews say (k), that the good things of this world are not truly good, in comparison of the good things of the world to come, and are not , "a perfect good." And every such an one is from above; is not from a man's self, from the creature, or from below, but from heaven, and from God who dwells there: and cometh down from the Father of lights; or author of lights; of all corporeal light; as the sun, moon, and stars; of all natural, rational, and moral light, in angels and men; of all spiritual light, or the light of grace in regenerate persons; and of eternal light, the light of glory in the spirits of just then made perfect: with whom is no variableness, nor shadow of turning: as there is in that great luminary, the sun in the firmament, which has its parallaxes, eclipses, and turnings, and casts its shadow; it rises and sets, appears and disappears every day; and it comes out of one tropic, and enters into another at certain seasons of the year: but with God, who is light itself, and in him is no darkness at all, there is no change, nor anything like it; he is changeable in his nature, perfections, purposes, promises, and gifts; wherefore he being holy, cannot turn to that which is evil; nor can he, who is the fountain of light, be the cause of darkness, or admit of any in him; and since every good and perfect gift comes from him, evil cannot proceed from him, nor can he tempt any to it. (k) Tzeror Hammor, fol. 23. 2, 3.”
Source
1832
A.D.
Adam Clarke Methodist
1762–1832
“Do not err - By supposing that God is the author of sin, or that he impels any man to commit it.”
1849
A.D.
1774–1849
“Do not err, nor deceive yourselves by yielding to temptation; beg God his supporting grace, for every good gift is from him. (Witham)”
1871
A.D.
1871
“Do not err in attributing to God temptation to evil; nay (as he proceeds to show), "every good," all that is good on earth, comes from God.”
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.