The interpretation timeline
Philippians 1:29 Douay-Rheims

For unto you it is given for Christ, not only to believe in him, but also to suffer for him.

A.D. 220 – 1871 7 witnesses

Patristic

before A.D. 750
220
A.D.
Tertullian Patristic
c. A.D. 150–220
“For the things which are seen are temporal"-he is speaking of troubles; "but the things which are not seen are eternal"-he is promising rewards. But writing in bonds to the Thessalonians, he certainly affirmed that they were blessed, since to them it had been given not only to believe on Christ, but also to suffer for His sake.”
Source
407
A.D.
John Chrysostom Patristic
A.D. 347–407
“"For unto you it is given in the behalf of Christ, not only to believe on Him, but also to suffer in his behalf." Again does he teach them moderation of spirit by referring all to God, and saying that sufferings in behalf of Christ are of grace, the gift of grace, a free gift. Be not then ashamed of the gift of grace, for it is more wonderful than the power of raising the dead, or working miracles; for there I am a debtor, but here I have Christ for my debtor. Wherefore ought we not only not to be ashamed, but even to rejoice, in that we have this gift. Virtues he calls gifts, yet not in like sort as other things, for those are entirely of God, but in these we have a share. But since even here the greatest part is of God, he ascribes it entirely to Him, not to overturn our free will, but to make us humble and rightly disposed.”
Source
435
A.D.
John Cassian Patristic
c. A.D. 360–435
“Not only the beginning of our conversion but also the continuance of it through the endurance of suffering for it are gifts given to us by the Lord.”

Scholastic

c. 1100 – 1500
1272
A.D.
Thomas Aquinas Catholic
1225–1274
“Having set forth the doubt and the arguments on both sides, here he resolves the doubt. And first, as though choosing one part, he foretells his future coming to them so far as it concerns himself; second, he shows what is required on their part, at the place *only worthily*, etc. Likewise the first is divided into three: first he sets forth his future coming; second he shows the fruit of it; third he explains that fruit. He says therefore: after it was said above that to remain in the flesh is necessary for your sake, and that my life is fruitful for you, *I know* — namely, for this reason, that I shall remain — but this as one trusting in God. Prov. 18: *the just man, trusting, is like a lion*, etc. *I shall stay and I shall remain*, that is, I shall live, and live long. But on the contrary, he was put to death shortly afterward by Nero. I respond: it must be said that the epistle was made, or written, in the first year of his imprisonment, which was the first year of Nero. Hence afterward he lived seven years. *To all of you*, that is, for the benefit of all of you. 1 Cor. 10:33: *not seeking what is useful to me, but what is useful to many, that they may be saved*. *And this for your progress*, that is, that through my exhortation you may progress in faith and rejoice over my life which you have heard of — but you would rejoice more if I were present. Rom. 1:11: *for I long to see you*, etc. Then he explains what he had said, saying *that your rejoicing*, etc., that is, if it be granted that I come to you again, the result is that I may be an abundant joy to you. Eph. 3:20: *but to him who is able to do all things more abundantly than we ask or understand*, etc. *And this in Christ Jesus*, because this very fact, that they rejoiced over him, was on account of Christ. Philem. 20: *may I enjoy you in the Lord*, etc. Then when he says *only worthily*, etc., he shows what is required on their part. And concerning this he does three things: first he states this requirement; second he makes clear the benefit that follows from it; third he explains it. He says therefore that only this is required on their part, that they conduct themselves worthily in the Gospel of Christ, namely, according to what befits such a teaching. 1 Thess. 2:12: *we testified, that you should walk worthily of God, who called you into his kingdom and glory*, etc. Col. 1:10: *that you walk worthily of God*, etc. *So that whether when I come and see you, or being absent, I may hear good things about you.* And this is a joy to me. 1 Jn. 3: *I have no greater grace than these, than to hear that my children walk in truth*, etc. And now in particular he asks of them, first unity, second constancy, at the place *and in nothing*, etc. Now for the saints a threefold unity is necessary: namely, of love; hence he says *I may hear about you*, namely, that you *stand in one spirit*, which is through love. Eph. 4:3: *solicitous to keep the unity of the spirit in the bond of peace*. And 1 Cor. 6:17: *but he who cleaves to the Lord is one spirit*. Likewise, of concord; hence he says *of one mind*, that is, having one will and one spirit. Acts 4:32: *of the multitude of believers there was one heart and one soul*. Ps. 67:7: *who makes those of one manner to dwell in a house*, etc. Likewise, of cooperation; hence he says *working together*, etc., namely, that one should help another. To this pertains what is said in 1 Kings 25:1: *all Israel was gathered together, and they mourned him*, namely Samuel. Prov. 18:19: *a brother who is helped by a brother is like a fortified city*. Second, he asks for constancy, at the place *and in nothing*, etc. And first he leads them to fortitude; second he gives the reason. He says therefore *and in nothing*, etc.; because they can do nothing except insofar as God permits. Lk. 21:18: *a hair of your head shall not perish*. Ps. 1:3: *his leaf shall not fall*, etc. Is. 51:12: *who are you, that you should fear a mortal man, and a son of man, who shall wither like grass?* Now the reason is threefold: the first is taken from the fruit of tribulation; the second from the twofold gift of God; the third from its author. He says therefore *be not terrified*, because there is *a fruit* for you — that is, the very persecution which, in them, that is, in those persecuting, is a cause of perdition, is for you a cause of salvation. Matt. 16:25: *whoever wishes to save his soul shall lose it*, etc. Jn. 12:25: *he who loves his soul shall lose it*. Hos. 12: *your destruction is from you, Israel; your help is only from me*, etc. *And this from God*, by whom it has been given to you as a gift, that you endure tribulations patiently. The second reason, *that you may believe in him*. Eph. 2:8: *for by grace you are saved through faith*, which is a great and first gift. And also that *you suffer for him*, which is a greater gift, namely, that you take up Christ's cause, as it were his athletes. Acts 5:41: *the apostles went rejoicing from the presence of the Council*, etc. If therefore it is useful and honorable, act therefore bravely. The third reason is taken from example, because he treats them in the same way as us, who are the firstfruits of the faithful. And therefore he says *having the same struggle, such as you also saw in me*, namely among you, when I was stripped and beaten at Philippi on account of the pythoness who was freed, Acts 16:16f.: *and now you have heard about me, who am in chains*.”
Source

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“For unto you it is given in the behalf of Christ,.... For the sake of his Gospel, for the good of his interest, and the glory of his name. The Alexandrian copy reads, "to us it is given", &c, not only to believe in him; for faith in Christ, which is not merely believing that he is the Christ, and all that is said of him, or all that he himself says, but is a seeing of the Son, a going to him, receiving, embracing, leaning, relying, and living upon him, as God's salvation, is a pure gift of grace; it is not in nature, nor in every man, and in whom it is, it is not of themselves, it is the gift of God; the first implantation of it, all its acts and exercise, its increase, and the performance of it at last with power, are all owing to the grace of God; and this is only given to the elect, for it is a distinguishing gift; it is given to them, and them alone, and, therefore called the faith of God's elect: but also to suffer for his sake; for the sake of Christ personal; for the sake of Christ mystical, for his body's sake the church; for the sake of his Gospel, and for the sake of his cause and interest in the world: now to suffer in name and character, in estate or person, not as an evildoer, but as a Christian, is a gift of God, as faith in Christ is; all the sufferings of the saints are appointed by God; their being called forth to suffer shame for the sake of Christ, is an high honour conferred upon them; all the grace and strength by which they are supported under sufferings for Christ are given to them; and all the glory consequent upon them is not merited by them, which are by no meant to be compared with it, but is the free gift of God through Christ. The same persons to whom it is given to believe in Christ, to them it is given to suffer for him; and they all do in some shape or another, though some more, others less; yet all are partakers of sufferings for Christ, and so are conformed to him their head, and hereby enter the kingdom: now all this is said, as containing so many reasons to encourage believers to have their conversation as becomes the Gospel of Christ, by a steady adherence to it, and a joint contention and striving for it, without being intimidated by their enemies.”
Source
1832
A.D.
Adam Clarke Methodist
1762–1832
“Unto you it is given in the behalf of Christ - Ὑμιν εχαρισθη· To you it is graciously given; it is no small privilege that God has so far honored you as to permit you to suffer on Christ's account. It is only his most faithful servants that he thus honors. Be not therefore terrified by your enemies; they can do nothing to you which God will not turn to your eternal advantage. We learn from this that it is as great a privilege to suffer for Christ as to believe on him; and the former in certain cases (as far as the latter in all cases) becomes the means of salvation to them who are thus exercised.”
Source
1871
A.D.
1871
“For--rather, a proof that this is an evident token from God of your salvation, "Because," &c. it is given--Greek, "it has been granted as a favor," or "gift of grace." Faith is the gift of God (Eph 2:8), not wrought in the soul by the will of man, but by the Holy Ghost (Joh 1:12-13). believe on him--"To believe Him," would merely mean to believe He speaks the truth. "To believe on Him," is to believe in, and trust through, Him to obtain eternal salvation. Suffering for Christ is not only not a mark of God's anger, but a gift of His grace.”
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.