The interpretation timeline

1John 2:2

How this passage has been read — the sources, oldest to newest.

From the early Church Fathers to now.

1John 2:2 · Douay-Rheims
“And he is the propitiation for our sins: and not for ours only, but also for those of the whole world.”
Patristic before A.D. 750
215
A.D.
Clement of Alexandria Patristic
c. A.D. 150–215
“"And not only for our sins,"-that is for those of the faithful,-is the Lord the propitiator, does he say, "but also for the whole world." He, indeed, saves all; but some [He saves], converting them by punishments; others, however, who follow voluntarily [He saves] with dignity of honour; so "that every knee should bow to Him, of things in heaven, and things on earth, and things under the earth;" that is, angels, men, and souls that before His advent have departed from this temporal life.”
Source
258
A.D.
Cyprian Patristic
c. A.D. 200–258
“Moreover, we do not prejudge when the Lord is to be the judge; save that if He shall find the repentance of the sinners full and sound, He will then ratify what shall have been here determined by us. If, however, any one should delude us with the pretence of repentance, God, who is not mocked, and who looks into man's heart, will judge of those things which we have imperfectly looked into, and the Lord will amend the sentence of His servants; while yet, dearest brother, we ought to remember that it is written, "A brother that helpeth a brother shall be exalted; " and that the apostle also has said, "Let all of you severally have regard to yourselves, lest ye also be tempted. Bear ye one another's burdens, and so fulfil the law of Christ; " also that, rebuking the haughty, and breaking down their arrogance, he says in his epistle, "Let him that thinketh he standeth, take heed lest he fall; " and in another place he says, "Who art thou that judgest another man's servant? To his own master he standeth or falleth; yea, he shall stand, for God is able to make him stand." John also proves that Jesus Christ the Lord is our Advocate and Intercessor for our sins, saying, "My little children, these things write I unto you, that ye sin not. And if any man sin, we have an Advocate with the Father, Jesus Christ the Supporter: and He is the propitiation for our sins." And Paul also, the apostle, in his epistle, has written, "If, while we were yet sinners, Christ died for us; much more, being now justified by His blood, we shall be saved from wrath through Him."”
Source
172 years pass — nothing from this stretch is hosted yet
430
A.D.
Augustine of Hippo Patristic
A.D. 354–430
“See John himself observing humility. Assuredly he was a righteous and a great man, who from the Lord's bosom drank in the secrets of His mysteries; he, the man who by drinking from the Lord's bosom indited of His Godhead, "In the beginning was the Word, and the Word was with God:" he, being such a man as this, saith not, Ye have an advocate with the Father; but, "If any man sin, an advocate," saith he, "have we." He saith not, ye have; nor saith, ye have me; nor saith, ye have Christ Himself: but he puts Christ, not himself, and saith, also, "We have," not, ye have. He chose rather to put himself in the number of sinners that he might have Christ for his advocate, than to put himself in Christ's stead as advocate, and to be found among the proud that shall be condemned.”
Source
430
A.D.
Augustine of Hippo Patristic
A.D. 354–430
“He that has said, "We have Jesus Christ the righteous, and He is the propitiation for our sins:" having an eye to those who would divide themselves, and would say, "Lo, here is Christ, lo, there;" and would show Him in a part who bought the whole and possesses the whole, he forthwith goes on to say, "Not our sins only, but also the sins of the whole world." What is this, brethren? Certainly "we have found it in the fields of the woods," we have found the Church in all nations. Behold, Christ "is the propitiation for our sins; not ours only, but also the sins of the whole world." Behold, thou hast the Church throughout the whole world; do not follow false justifiers who in truth are cutters off. Be thou in that mountain which hath filled the whole earth: because "Christ is the propitiation for our sins; not only ours, but also the sins of the whole world," which He hath bought with His blood.”
Source
449
A.D.
Hilary of Arles Patristic
c. A.D. 401–449
“When John says that Christ died for the sins of the "whole world," what he means is that he died for the whole church.”
155 years pass — nothing from this stretch is hosted yet
604
A.D.
Gregory the Great Patristic
c. A.D. 540–604
“Hence also the two cherubim that cover the mercy seat look upon one another with their faces turned toward the mercy seat. For cherubim means "fullness of knowledge." And what is signified by the two cherubim except both Testaments? And what is figured by the mercy seat except the incarnate Lord? Of whom John says: "For he is the propitiation for our sins." And while the Old Testament proclaims that this was to be done which the New Testament declares was done concerning the Lord, it is as if both cherubim look upon one another, while they turn their faces toward the mercy seat, because while they see the incarnate Lord placed between them, they do not disagree in their view, for they narrate the mystery of his dispensation in harmony.”
Source
637
A.D.
Andreas of Caesarea Patristic
c. A.D. 563–637
“John is saying: "I am writing these things to you, not so that you may say that you no longer sin at all, but so that when you do sin, you will not remain in that state, for Jesus propitiates your sins in the Father's presence."”
735
A.D.
Bede Patristic
A.D. 673–735
“And he himself is the propitiation for our sins. He who intercedes for us with the Father through his humanity, also propitiates for us with the Father through his divinity.”
735
A.D.
Bede Patristic
A.D. 673–735
“Not only for our own sins, etc. The Lord is not a propitiation only for those for whom John wrote while they were then living in the flesh, but also for the whole Church spread throughout the breadth of the world, from the first chosen to the last who will be born at the end of the world. By these words, he reproves the schism of the Donatists, who claimed that the Church of Christ was confined only to the borders of Africa. Therefore, the Lord intercedes for the sins of the whole world, because the Church, which He bought with His own blood, is spread throughout the entire world. That the whole world is in the power of the evil one does not contradict this statement, for there are those throughout the whole world who serve the evil one, that is, the ancient enemy.”
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.