The interpretation timeline
Philippians 2:27 Douay-Rheims

For indeed he was sick, nigh unto death; but God had mercy on him; and not only on him, but on me also, lest I should have sorrow upon sorrow.

A.D. 407 – 1871 5 witnesses

Patristic

before A.D. 750
407
A.D.
John Chrysostom Patristic
A.D. 347–407
“"Since he longed after you all, and was sore troubled, because ye had heard that he was sick. For indeed he was sick nigh unto death: but God had mercy on him; and not on him only, but on me also, that I might not have sorrow upon sorrow." Here he aims at a farther point, making it manifest, that Epaphroditus too was well aware, how he was beloved of them. And this is no light thing toward loving. You know how he was sick, he says; and he grieved that on his recovery he did not see you, and free you from the grief ye had by reason of his sickness. Here too he gives another reason for sending so late to them, not from any remissness, but he kept Timothy because he had no one else, (for, as he had written, he had "no one likeminded,") and Epaphroditus because of his sickness. He then shows that this was a long sickness, and had consumed much time, by adding, "for he was sick nigh unto death." You see how anxious Paul is to cut off from his disciples all occasion of slighting or contempt, and every suspicion that his not coming was because he despised them. For nothing will have such power to draw a disciple toward one, as the persuasion that his superior cares for him, and that he is full of heaviness on his account, for this is the part of exceeding love. Because "ye have heard," he says, "that he was sick; for he was sick nigh unto death." And that I am not making an excuse, hear what follows. "But God had mercy on him." What sayest thou, O heretic? Here it is written, that God's mercy retained and brought back again him who was on the point of departure. And yet if the world is evil, it is no mercy to leave a man in the evil. Our answer to the heretic is easy, but what shall we say to the Christian? for he perchance will question, and say, "if to depart and to be with Christ is far better," how saith he that he hath obtained mercy? I would ask why the same Apostle says, that "it is more needful to abide with you"? For as it was needful for him, so too for this man, who would hereafter depart to God with more exceeding riches, and greater boldness. Hereafter that would take place, even if it did not now, but the winning souls is at an end for those who have once departed thither. In many places too, Paul speaks according to the common habits of his hearers, and not every where in accordance with his own heavenly wisdom: for he had to speak to men of the world who still feared death. Then he shows how he esteemed Epaphroditus, and thence he gets for him respect, by saying, that his preservation was so useful to himself, that the mercy which had been shown to Epaphroditus reached him also. Moreover, without this the present life is a good; were it not so, why does Paul rank with punishment untimely deaths? as when he says, "For this cause many are weak and sickly among you, and not a few sleep"; for the future life is not (merely) better than an evil state, since (then) it were not good, but better than a good state. "Lest I should have," he says, "sorrow upon sorrow"; sorrow from his death in addition to that which sprung from his sickness. By this he shows how much he prized Epaphroditus.”
Source

Scholastic

c. 1100 – 1500
1272
A.D.
Thomas Aquinas Catholic
1225–1274
“Above, the Apostle exhorted them to do works of salvation; here he teaches them the manner of doing them. And first he teaches the manner itself; second he assigns the reason for it, at "that you may be," etc. He teaches a twofold manner of doing them, namely without murmuring and without doubting. For works of virtue are most difficult, and in these murmuring has a place. 1 Cor. 10:10: "neither murmur, as some of them murmured, and perished by the destroyer." And lest you doubt whether they are to be done. James 1:6: "for he who hesitates is like a wave of the sea, which is moved by the wind, and carried about," etc. He then gives the reason for this, first on the part of them; second on the part of the Apostle, at "to my glory," etc. Concerning the first, a threefold reason is given. The first, in comparison to the faithful, when he says "that you may be without complaint." Luke 1:6: "walking in all the commandments and justifications of the Lord without complaint," etc. But no one can be without sin, though he can well be without complaint. Hence he admonishes to this. Second, in comparison to God, at "simple," etc. For a son is like the father; but God is simple; hence we should be simple as sons of God, which is, when the intention is toward one thing. James 1:8: "a man double in soul is inconstant in all his ways." Matt. 10:16: "be prudent as serpents, and simple as doves." Third, in comparison to unbelievers, at "without reproach," etc., that is, that they may conduct themselves well toward unbelievers, namely that they be without offense, "in the midst of a nation" that is "depraved," as to evil works, "and perverse," as to unbelief: and this is when they cannot be defamed by them. 1 Tim. 5:14: "give no occasion to the adversary for the sake of reviling." And the reason for this is given, at "among whom," etc. Because however the world may be varied, the lights of heaven remain bright. Matt. 5:14: "you are the light of the world," etc. Shining, not as to essence, for in that way only God is light. John 1:4: "and the life was the light of men," etc. But the saints are not so. John 1:8: "he was not the light," etc. But they are light, insofar as they have something of the light of him who was the light of men, namely of the Word of God shining upon us. And therefore he says "holding fast the word of life," namely the word of Christ. John 6:68: "Lord, to whom shall we go? You have the words of eternal life." Ps. 118:105: "your word is a lamp to my feet," etc. Then he gives the reason on the part of the Apostle, at "to my glory." Second, he makes the reason clear, that subjects ought to act well, also so that it may redound to the glory of their prelates. For it is their glory when subjects are well instructed. Prov. 10:1: "a wise son gladdens the father," etc. 1 Thess. 2:20: "for you are our glory," etc. And this "in the day of Christ," namely when he will bring the faithful with him. And this is for glory on account of two things, namely on account of labor in preaching and on account of the suffering of death which he sustained. And therefore he says "that I have not run in vain, nor labored in vain." By "course" he means preaching, on account of its swiftness, since it went from Jerusalem even to Spain. Likewise "labors," on account of the contradictions and punishments which he endured, and this not in vain, but rather to much fruit. 1 Cor. 15:10: "his grace in me has not been empty." Likewise on account of suffering, at "but if I am also sacrificed." For in converting some, he offers a sacrifice to God, as it were from those whom he converts. But sometimes those offering were killed by tyrants upon the sacrifice, as is found in Luke 13:1. And therefore he says: I offer to God a sacrifice from you. But if it should happen that I too am sacrificed upon this, that is, that on occasion of the sacrifice of your conversion I be killed, I rejoice on my own account. James 1:2: "count it all joy, my brothers, when you fall into various temptations," etc. And I congratulate you that you have faith even with danger to my person, for which also in this you should rejoice. And therefore he says "in the same way, rejoice and congratulate me." Rom. 12:15: "to rejoice with those who rejoice." Then when he says "but I hope," etc., he sets forth his disciples as an example. And first Timothy, second Epaphroditus, at "but necessary," etc. Concerning the first, first he sets forth the sending of Timothy; second he commends him, at "no one," etc.; third he indicates the time of the sending, at "him therefore," etc. He says therefore "I hope," etc. It should be noted that the Apostle had such confidence in God that he attributed even the smallest things to God. 2 Cor. 3:5: "not that we are sufficient to think anything of ourselves as of ourselves, but our sufficiency is from God." The letter is plain. Then he commends him, first from his charity toward them; second from his devotion to the Apostle, at "the proof," etc. And thus a good mediator acts, for he loves the one, and reveres the other. Likewise, first he sets down the commendation; second he explains it, at "for all seek the things which," etc. He says therefore "I send," etc., because "no one," etc., namely for your profit. Ps. 67:7: "who makes those of one manner to dwell in a house." "Who may be solicitous." Rom. 12:8: "he who is over others in solicitude." "With sincere affection," because it is only on account of God. 2 Cor. 1:17: "out of sincerity, as from God, before God, we speak in Christ." But the reason why "no one," etc., is because "all seek the things which," etc., that is, they do not seek the things which pertain to the salvation of neighbors and to the honor of God, but the things which pertain to gain and glory, and the things which are their own. But did not Luke and Epaphroditus and the others who were with the Apostle seek the things that were their own? I respond. It must be said that in the Apostle's company there were many who sought this, who also deserted him. 2 Tim. 4:10: "for Demas has forsaken me, loving this present world, and has gone to Thessalonica: Crescens to Galatia: Titus to Dalmatia: Luke alone is with me." But it is a custom that Scripture sometimes speaks of some as if of all. Jer. 6:13: "for from the least even to the greatest all are given to avarice, and from the prophet even to the priest all act deceitfully," etc. And so it is a fitting distribution. And if you wish to know how he conducts himself toward me, I respond, "the proof," etc., that is, as though he were a special son. 1 Cor. 4:17: "therefore I have sent to you Timothy, who is my dearest and faithful son in the Lord," etc. Him, therefore, so solicitous for you, so dear to me, I hope, etc. But why not at once? It should be known that it is otherwise with Christ than with the other saints. For in Christ is the fullness of graces, hence he always had knowledge of all things; not so the other saints. Hence the Apostle foresaw some things about the future concerning himself, and some things he did not know. And thus it had not been revealed to him whether he was to be freed from his chains. And therefore he says "soon," etc. Because if the opportunity is given, I will come in person. And therefore he says "I trust," etc. Yet nevertheless he was not freed from his chains. Ps. 17:29: "for you light my lamp, O Lord my God, enlighten my darkness." For there is always something dark in the saints. Then when he says "necessary," etc., he sets forth another of his disciples as an example, namely Epaphroditus. And first he describes him; second he shows how he should be received, at "receive," etc. Concerning the first he does two things: first he commends him; second he shows the cause of his sending, at "since indeed," etc.; third he explains it, at "for he was also sick," etc. He says therefore "necessary," etc. He calls him "brother," on account of faith. Matt. 23:8: "you are all brothers," etc. "Fellow-worker," namely in the labor of preaching. Prov. 18:19: "a brother who is helped by a brother is like a strong city." And "fellow-soldier," etc. Because they suffered tribulation together. 2 Tim. 2:3: "labor as a good soldier of Christ Jesus," etc. "Apostle," that is, teacher. This one was bishop of the Philippians, and was sent by them that he might serve the Apostle, and therefore he says "the minister of my need." Below, 4:18: "I am filled, having received from Epaphroditus, whom you sent, an odor of sweetness, an acceptable sacrifice, pleasing to God." But why? To satisfy the desire with which he desired to see you. Rom. 1:11: "for I desire you," etc. Likewise to relieve his own sorrow, because he was sorrowful over your sorrow, which you had conceived when you heard that he was sick. And he explains the cause, saying "for he was also sick even unto death," namely according to the judgment of the physicians, but not according to divine providence, but for the honor of God. John 11:4: "this sickness is not unto death, but for the glory of God." Therefore there follows, "but God had mercy on him." Ps. 6:3: "have mercy on me, O Lord, for I am weak," etc. "And not only," etc., because he had a temporal and natural sorrow over his afflictions, just as Christ also is read to have had at times. Consequently he concludes the sending, and the letter is clear, and he shows how he should be received, and second the reason for this. He is to be received honorably in the Lord, whose minister he is. Gal. 4:14: "you received me as an angel of God, as Christ Jesus." 1 Tim. 5:17: "the priests who preside well are to be held worthy of double honor: especially those who labor in word and doctrine," etc. And this "on account of," etc., that is, on account of God and the salvation of the faithful, "he approached even unto death." John 15:13: "no one has greater love, than that someone lay down his soul for his friends," etc. "Handing over." John 10:11: "the good shepherd lays down his soul for his sheep." And this "that he might fulfill," etc., what you personally were not able to do concerning service to me.”

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“I sent him therefore the more carefully,.... Or in greater haste, and as soon as possible: that when ye see him again ye may rejoice; for this must greatly increase their joy, to see him again after he had been so long from them, and under such a disorder, which had made them to fear they should never see him more. The Syriac version renders it, "that when ye see him ye may rejoice again"; as they had done heretofore in his conversation and ministry, when among them: and that I may be the less sorrowful; when he should hear of his safe arrival among them, and of their joyful reception of him to their mutual satisfaction, which would be an alleviation of the apostle's sorrow in his present circumstances; for he did not expect to be wholly without sorrow while in this life.”
Source
1832
A.D.
Adam Clarke Methodist
1762–1832
“Lest I should have sorrow upon sorrow - The sorrows of his death, added to the sorrow he endured on account of his sickness; or he may refer to his own state of affliction, being imprisoned and maltreated.”
1871
A.D.
1871
“Epaphroditus' sickness proves that the apostles had not ordinarily the permanent gift of miracles, any more than of inspiration: both were vouchsafed to them only for each particular occasion, as the Spirit thought fit. lest I should have sorrow upon sorrow--namely, the sorrow of losing him by death, in addition to the sorrow of my imprisonment. Here only occurs anything of a sorrowful tone in this Epistle, which generally is most joyous.”
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.