The interpretation timeline
2 Timothy 2:4 Douay-Rheims

No man, being a soldier to God, entangleth himself with secular businesses; that he may please him to whom he hath engaged himself.

A.D. 108 – 1871 13 witnesses 15 excerpts

Patristic

before A.D. 750
108
A.D.
c. A.D. 50–107
“Give attention to reading, that thou mayest not only thyself know the laws, but mayest also explain them to others, as the earnest servant of God. "No man that warreth entangleth himself with the affairs of this life, that he may please him who hath chosen him to be a soldier; and if a man also strive for masteries, yet is he not crowned except he strive lawfully." I that am in bonds pray that my soul may be in place of yours.”
Source
“Give ye heed to the bishop, that God also may give heed to you. My soul be for theirs that are submissive to the bishop, to the presbyters, and to the deacons, and may my portion be along with them in God! Labour together with one another; strive in company together; run together; suffer together; sleep together; and awake together, as the stewards, and associates, and servants of God. Please ye Him under whom ye fight, and from whom ye receive your wages. Let none of you be found a deserter. Let your baptism endure as your arms; your faith as your helmet; your love as your spear; your patience as a complete panoply. Let your works be the charge assigned to you, that ye may receive a worthy recompense. Be long-suffering, therefore, with one another, in meekness, as God is towards you. May I have joy of you for ever!”
Source
258
A.D.
Cyprian Patristic
c. A.D. 200–258
“For it is written: "No man that warreth for God entangleth himself with the affairs of this life, that he may please Him to whom he has pledged himself.". And again: "No man that warreth for God binds himself to anxieties of this world, that he may be able to please Him to whom he hath approved himself. Moreover, also, if a man should contend, he will not be crowned unless he have fought lawfully.". Concerning this same thing to Timothy: "No man that warreth for God bindeth himself with worldly annoyances, that he may please Him to whom he hath approved himself. But and if a man should contend, he will not be crowned unless he fight lawfully."”
Source
379
A.D.
Basil of Caesarea Patristic
c. A.D. 330–379
“Where is Christ, the King? In heaven, to be sure. In this direction it behooves you, soldier of Christ, to direct your course. Forget all earthly delights. A soldier does not build a house. He does not aspire to the possession of lands. He does not concern himself with devious, coin-purveying trade.… The soldier enjoys a sustenance provided by the king. He need not furnish his own nor vex himself in this regard.”
Source
407
A.D.
John Chrysostom Patristic
A.D. 347–407
“You are a spiritual soldier. This kind of soldier does not sleep on an ivory bed but on the ground. He is not anointed with perfumed oils. These are the concern of those corrupt men who dally with courtesans, of those who act on the stage, of those who live carelessly. You must not smell of perfumes but of virtue.”
“"No man that warreth entangleth himself with the affairs of this life, that he may please him who hath chosen him to be a soldier. And if a man also strive for masteries, yet is he not crowned except he strive lawfully." These things are said indeed to Timothy, but through him they are addressed to every teacher and disciple. Let no one therefore of those who hold the office of a Bishop disdain to hear these things, but let him be ashamed not to do them. "If any one strive for masteries," he says, "he is not crowned, except he strive lawfully." What is meant by "lawfully"? It is not enough that he enters into the lists, that he is anointed, and even engages, unless he comply with all the laws of the exercise, with respect to diet, to temperance and sobriety, and all the rules of the wrestling school, unless, in short, he go through all that is befitting for a wrestler, he is not crowned. And observe the wisdom of Paul. He mentions wrestlers and soldiers, the one to prepare him for slaughter and blood, the other with reference to endurance, that he might bear everything with fortitude, and be ever in exercise.”
Source
430
A.D.
Augustine of Hippo Patristic
A.D. 354–430
“We are not anxious about the necessities of life, because, when we can perform these labors, he feeds and clothes us as men in general are fed and clothed. When, however, we are not able to work, then he feeds and clothes us just as the birds are fed and the lilies clothed, since we are of more value than they. Therefore, in this warfare of ours, we give no thought to the morrow, because it is not by temporal concerns pertaining to the morrow but by eternal matters, the concern of the everlasting today, that we have proved ourselves to him whom we cannot please if we are entangled in worldly affairs.”
Source
461
A.D.
Leo the Great Patristic
c. A.D. 400–461
“He who is enrolled in God's army must not be bound to others, lest any obligatory ties call him away from the Lord's camp, where his name is inscribed.”
523
A.D.
c. A.D. 450–523
“And again Paul himself saith, "No soldier on service who entangleth himself in the affairs of the world is able to please Him Who elected him. And if he contendeth, he is not crowned, except he have contended lawfully." What then? If the soldiers of the kingdom of the world empty themselves of everything that they may learn the arts of their service, and may thereby please the king who elected them, what disciple who hath been elected to the spiritual service, is able to become captain if he be bound by the things of the world?”
Source

Scholastic

c. 1100 – 1500
1273
A.D.
Thomas Aquinas Catholic
1225–1274
“Above he led Timothy to diligent preaching of the Gospel; here he leads him to constant endurance of martyrdom. And first he leads him to sustain suffering for the salvation of the faithful; second he teaches him how he should resist unbelievers, at "do not with words." Again, first the preparation for enduring martyrdom is set forth; second, the exhortation to martyrdom, at "be mindful." The preparation for martyrdom is set forth as to three things. The first is fortitude of soul; the second is the dispensing of goods, at "and what you have heard"; the third is the fruitful labor of warfare, at "labor." Now fortitude is required for martyrdom, which concerns the dangers of death. And therefore he says "you therefore, my son" — namely, whom I have begotten through the Gospel — "be strengthened in grace." Ps. XXX, v. 24: "Act manfully, and let your heart be strengthened." Which is not in you — namely, whose strength is vain — but in Christ Jesus. Eph. c. VI, 10: "Be strengthened in the Lord, and in the might of his power." Or "in grace," etc., that is, in the free gift of God through Christ. Io. I, 17: "Grace and truth was made through Jesus Christ." The second is the dispensing of goods. Concerning which it must be noted that when someone is brought to death, he disposes of his own things. Therefore the saints ought to be no less solicitous about the spiritual goods entrusted to them, that these not perish after their death, but that they entrust them to others; and therefore he warns him that, if he should come to martyrdom, he should dispense the teaching of the faith. And first he states how he received it, namely through hearing; hence he says "what you have heard from me," and I from Christ. And I say "from me" not singularly, but confirmed through many witnesses, that is, through the law and the prophets. Rom. III, 21: "witnessed by the law and the prophets." Or through the apostles. I Cor. XV, 11: "For whether I, or they, so we have preached, and so you have believed." "Commend these things," inasmuch as they have been received. Sap. VII, 13: "which I have learned without deceit, and communicate without envy." "To faithful men" — namely so that they should not seek temporal gain, but the glory of God. I Cor. IV, 2: "Here now it is required among stewards, that a man be found faithful." Matthaeus XXIV, 45: "a faithful and prudent servant, whom the lord has set over his household," et cetera. Again, it must be those who are fit for dispensing; therefore he says "who fit," et cetera. Now they ought to be fit in three ways. First in understanding, that they be wise in understanding. Lc. XXI, 15: "I will give you a mouth and wisdom," et cetera. Again in tongue, that they be eloquent in teaching. Is. l, 4: "The Lord has given me a learned tongue, that I should know how to raise up by a word him who has fallen." Again in work, for "Jesus began to do and to teach," Act. I, 1. Then when he says "labor," the third is set forth, which is the lawful labor of warfare, to which he first exhorts; second he sets forth the reward of the labor, at "for indeed he who"; third, the wages of warfare, "him who labors." Again, first he exhorts to lawful labor; second he explains what labor is lawful, at "no one." He therefore says "labor as a good soldier of Christ." Now one is a soldier of Christ in three ways. First, insofar as he fights against sins. Iob VII, 1: "The life of man upon earth is a warfare"; and XIV, 14: "All the days in which I now war, I wait," et cetera. And this fight is against the flesh, the world, and the devil. Eph. ult.: "Our wrestling is not against flesh and blood," et cetera. Second, one is a soldier of Christ by fighting against errors. II Cor. X, 4: "The weapons of our warfare are not carnal, but mighty to God, destroying counsels unto the destruction of fortifications," et cetera. Third is the warfare of martyrs against tyrants. And this is more laborious. Iob XXV, 3: "Is there any numbering of his soldiers?" And a soldier ought not to rest, for he is so called from having to sustain warfare. Then when he says "no one," he explains what lawful labor is. And first he leads him to labor; second he shows what sort the good soldier ought to be, at "that he may please him." First, concerning the first he does two things: he sets forth an example; second he makes it clear. He therefore says "no one warring for God," et cetera. Concerning the first it must be known that the end of spiritual warfare is one thing, and the end of bodily warfare is another; for the end of bodily warfare is that one obtain victory against the enemies of the fatherland, and therefore soldiers ought to abstain from those things which draw them away from the fight, namely from business and delights. I Cor. IX, 25: "He who strives in the contest abstains from all things." But the end of spiritual warfare is that they have victory over men who are against God; and therefore it is fitting that they abstain from all things which draw them away from God. Now these are secular affairs, for the anxiety of this age chokes the word. And therefore he says "entangles himself." But on the contrary: secular affairs are temporal, yet the apostle did this, when he lived by the labor of his own hands. I respond. It must be said that the apostle says "entangles," and does not say "exercises." Now he is entangled by these things, whose care and anxiety is joined about them. And then properly these very things are forbidden to the soldiers of Christ, in which it is shown that the mind need not be entangled. Again, he does not say simply "is entangled," but says "entangles himself," because sometimes one is entangled, and does not entangle himself. For he entangles himself when he takes up affairs without piety and necessity; but when the necessity of an office of piety and authority is exercised, then he does not entangle himself, but is entangled by such necessity. Rom. XVI, 2: "that you assist him in whatever business he shall need of you." Now the reason why they ought not to entangle themselves is "that he may please him to whom he has proved himself." I Io. II, 15: "If anyone loves the world, the charity of the Father is not in him." For he who is a soldier of Christ has devoted himself to warring for God; and therefore he ought to strive that he may please him to whom he has devoted himself. Then when he says "for indeed he who," he sets forth the reward of the labor. And because someone might say: O Paul, you impose great things, but what is the fruit of these things? He responds: take an example from secular contests, where not all, but those who fight lawfully receive the crown. So therefore it will also be in spiritual things, that no one will be crowned, unless he keeps the due laws of the fight. I Cor. c. IX, 25: "They indeed that they may receive a corruptible crown, but we an incorruptible one." Sap. c. IV, 2: "Crowned, she triumphs forever." Then when he says "him who labors," he shows the wages, and forbids him secular affairs. And first he sets forth the wages under a metaphor; second he explains, at "understand." For the office of preachers and teachers is the office of soldiers, insofar as they rise up against enemies and vices; likewise of farmers, insofar as they produce fruit by advancing men to good things. Of this the field is the Church, and the principal farmer is God, working inwardly and outwardly. Io. XV, 1: "I am the true vine, and my Father is the farmer." But men apply their ministry outwardly. I Cor. III, 6: "I planted, Apollo watered, but God gave the increase." These are the outward farmers. Iob c. XXXI, 39: "if I have afflicted the soul of its farmers." This farmer, therefore, ought to receive fruit; the fruits of this are the works of the virtues. Eccli. XXIV, 23: "My flowers are the fruit of honor and honesty." Gal. V, 22: "But the fruit of the spirit is charity, joy, peace, patience." Among these fruits are also the fruits of alms. Act. IX, 36: "she was full of good fruits and of alms which she did." These, therefore, ought principally to receive the fruit, that they themselves may rejoice. First, concerning the fruits of their subjects. Phil. IV, 1: "therefore, my dearest and most longed-for brothers, my joy and my crown." Second, concerning temporal subsidies, not as the principal reward, but as wages. Gal. VI, 6: "But let him who is instructed in the word share with him who instructs him, in all good things." Matth. c. X, 10: "The laborer is worthy of his food." Then when he says "understand," he explains what he had said, following the manner of Christ after parables. Matth. XIII, 9: "He who has ears to hear, let him hear." As if he were to say: reduce these things to spiritual understanding. Dan. X, 1: "understanding is needed in the vision." As if someone might say: you say, "receive wages," O Timothy; but you yourself do not do this, since you wish to live by the labor of your hands. Hence "understand what I say," for discretion is necessary, since wages are not to be received where there is occasion of avarice against the Gospel, or on account of covetousness, or on account of idleness. And this you will be able to understand, for "he will give," et cetera. I Io. II, 27: "The anointing will teach you concerning all things."”

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“No man that warreth,.... Who is a soldier, and gives himself up to military service, in a literal sense: the Vulgate Latin version, without any authority, adds, "to God"; as if the apostle was speaking of a spiritual warfare; whereas he is illustrating a spiritual warfare by a corporeal one; and observes, that no one, that is in a military state, entangleth himself with the affairs of this life; with civil affairs, in distinction from military ones. The Roman soldiers might not follow any trade or business of life, or be concerned in husbandry, or merchandise of any sort, but were wholly to attend to military exercises, and to the orders of their general; for to be employed in any secular business was reckoned an entangling of them, a taking of them off from, and an hindrance to their military discipline: and by this the apostle suggests that Christ's people, his soldiers, and especially his ministers, should not he involved and implicated in worldly affairs and cares; for no man can serve two masters, God and mammon; but should wholly give up themselves to the work and service to which they are called; and be ready to part with all worldly enjoyments, and cheerfully suffer the loss of all things, when called to it, for the sake of Christ and his Gospel: that he may please him who hath chosen him to be a soldier; his captain, or general, who has enlisted him, enrolled and registered him among his soldiers; whom to please should be his chief concern; as it should be the principal thing attended to by a Christian soldier, or minister of the Gospel, not to please men, nor to please himself, by seeking his own ease and rest, his worldly emoluments and advantages, but to please the Lord Christ, in whose book his name is written.”
Source
1832
A.D.
Adam Clarke Methodist
1762–1832
“No man that warreth entangleth, etc. - It is well remarked by Grotius, on this passage, that the legionary soldiers among the Romans were not permitted to engage in husbandry, merchandise, mechanical employments, or any thing that might be inconsistent with their calling. Many canons, at different times, have been made to prevent ecclesiastics from intermeddling with secular employments. The who will preach the Gospel thoroughly, and wishes to give full proof of his ministry, had need to have no other work. He should be wholly in this thing, that his profiting may appear unto all. There are many who sin against this direction. They love the world, and labor for it, and are regardless of the souls committed to their charge. But what are they, either in number or guilt, compared to the immense herd of men professing to be Christian ministers, who neither read nor study, and consequently never improve? These are too conscientious to meddle with secular affairs, and yet have no scruple of conscience to while away time, be among the chief in needless self-indulgence, and, by their burdensome and monotonous ministry, become an incumbrance to the Church! Do you inquire: In what sect or party are these to be found? I answer: In All. Idle drones: - Fruges consumere nati, "Born to consume the produce of the soil," disgrace every department in the Christian Church. They cannot teach because they will not learn.”
Source
1849
A.D.
1774–1849
“No man….entangleth himself with worldly concerns: with other affairs of the world: much less must the soldier of Christ, who striveth, [2] (better than fighteth ) which belongs to the first comparison. (Witham)”
1863
A.D.
1796–1863
“G. P. omit "to God." The apostle uses the comparison of a soldier, who does not engage in the common pursuits of men, being wholly devoted to the pro- fession of arms.”
1871
A.D.
1871
“"No one while serving as a soldier." the affairs of (this) life--"the businesses of life" [ALFORD]; mercantile, or other than military. him who hath chosen him--the general who at the first enlisted him as a soldier. Paul himself worked at tent-making (Act 18:3). Therefore what is prohibited here is, not all other save religious occupation, but the becoming entangled, or over-engrossed therewith.”
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.