The interpretation timeline
Acts 9:31 Douay-Rheims

Now the church had peace throughout all Judea, and Galilee, and Samaria; and was edified, walking in the fear of the Lord, and was filled with the consolation of the Holy Ghost.

A.D. 407 – 1871 7 witnesses

Patristic

before A.D. 750
407
A.D.
John Chrysostom Patristic
A.D. 347–407
“"Then, it says, the Church throughout all Judea and Galilee and Samaria had peace, being edified, and walking in the fear of the Lord, and abounded in the comfort of the Holy Ghost." He is about to relate that Peter goes down from Jerusalem, therefore that you may not impute this to fear, he first says this. For while there was persecution, he was in Jerusalem, but when the affairs of the Church are everywhere in security, then it is that he leaves Jerusalem. See how fervent and energetic he is! For he did not think, because there was peace, therefore there was no need of his presence. Paul departed, and there was peace: there is no war nor disturbance. Them, they respected most, as having often stood by them, and as being held in admiration by the multitude: but him, they despised, and were more savage against him. See, how great a war, and immediately, peace! See what that war effected. It dispersed the peace-makers. In Samaria, Simon was put to shame: in Judea, the affair of Sapphira took place. Not that, because there was peace, therefore matters became relaxed, but such was the peace as also to need exhortation. "So the Church throughout all Judea and Galilee and Samaria had peace" - i.e. it increased: and peace with itself, that peace which is peace indeed: for the war from without would have done them no harm - "they being edified, and walking in the fear of the Lord, and abounded in the consolation of the Holy Ghost." And the spirit consoled them both by the miracles and by the works, and independently of these in the person of each individual.”
Source

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“And it came to pass, as Peter passed through all quarters,.... The Arabic version reads, "all the foresaid places", as Judea, Galilee, and Samaria; through which he took a tour, in order to visit the new churches here planted, fix pastors over them, and confirm the Gospel by miracles, which they had received: he came down also to the saints which dwelt at Lydda: a city which lay on the west of Jerusalem, and is said (u) to be a day's Journey from it; and a day's journey were ten parsas, or forty miles (w): it was but thirty two miles from Jerusalem, and was a place famous for Jewish doctors; for which reason it is frequently mentioned in the Talmudic writings, under the name of Lod or Lud. Mention is made of R. Simlai, who was of Lydda (x), and of the chambers of Beth Nithzah, and of Arum in Lydda (y) where the doctors disputed; there was a school here, of which R. Akiba was president (z) here also the sanhedrim sometimes sat, since we are told that Ben Sutda was tried and stoned at Lud or Lydda (a); and here likewise they intercalated the year (b), it being in Judea: this place was situated in a plain; so says Jerom (c), "they that dwell in Sephela, that is, in the plain, Lydda and Emmaus, which design Diospolls and Nicopolis, shall possess the Philistines.'' And with this agrees the account the Talmudists (d) give of it, "the country of Judea was divided into three parts, the hill country, the plain, and the valley; from Bethhoron to Emmaus was the hill country; from Emmaus to Lydda was the plain or champaign country; and from Lydda to the sea, the valley.'' Hence also we read (e) of , "the plain of Lydda": and now Peter coming from Jerusalem, and the hill country of Judea, into this plain and champaign country, is properly said to come down to the saints there. So Quadratus in Josephus (f) is said to come up from Lydda to Jerusalem. This place was near the Mediterranean sea; and was in Jerom's time called Diospolis (g), and in the time of R. Benjamin (h) Seguras; it is the same with Lod in Ezr 2:33 The builder of it was Shamed the son of Elpaal, Ch1 8:12. It was in the times of Josephus (i) a village, yet not inferior to a city for greatness. It is now called S. Georgia. And here it seems some saints or Christians dwelt, whom Peter, among the rest, visited; and which is mentioned for the sake of the miracle he there wrought, next related. And these saints at Lydda very likely were converted under Philip's ministry, as he passed from Azotus to Caesarea, Act 8:40 and, it may be, were in a church state, or, however, were afterwards. Zenas the lawyer, the Apostle Paul speaks of in Tit 3:13 is said to be bishop of Diospolis, or Lydda; in the beginning of the fourth century Aetius was bishop of this place, who assisted in the council of Nice; and in the same century, anno 331, Dionysius, another bishop of this place, was present at a council at Constantinople; and in the fifth century Photinus wrote himself bishop of Lydda, in the Chalcedon council, anno 451 (k). (u) Misn. Maasersheni, c. 5. sect. 2. T. Bab. Betza, fol. 5. 1. & Roshhashana, fol. 31. 2. & Juchasin, fol. 37. 1. (w) T. Bab. Pesachim, fol. 93. 2. & Gloss. in ib. (x) Juchasin, fol. 105. 1. (y) T. Bab. Kiddushin, fol. 40. 2. T. Hieros. Pesachim, fol. 30. 2. (z) Misn. Roshhashana, c. 1. sect. 6. (a) T. Hieros. Sanhedrin, fol. 25. 4. (b) Ib. fol. 18. 3. (c) In Obad. 1. 19. (d) T. Hicros. Sheviith, fol. 38. 4. (e) Misn. Sheviith, c. 9. sect. 2. (f) De Bello Jud. l. 2. c. 12. sect. 8. (g) Epitaph. Paulae, fol. 59. A. (h) ltinerar. p. 52. (i) Antiqu. l. 20. c. 5. sect. 2. (k) Reland. Palestina Illustrata, 1. 3. p. 878, 879. Vid. Magdeburg. Hist. Eccles. cent. 4. c. 2. p. 2. cent. 5. c. 2. p. 2.”
Source
1832
A.D.
Adam Clarke Methodist
1762–1832
“Then had the Churches rest - Instead of ἱα εκκλησιαι, the Churches, ABC, several others, the Syriac, Coptic, Ethiopic, Armenian, and Vulgate, have ἡεκκλησια, the Church. Every assembly of God's people was a Church; the aggregate of these assemblies was The Church. The wordειρηνην, which we translate rest, and which literally signifies peace, evidently means, in this place, prosperity; and in this sense both it and the Hebrew שלום shalom are repeatedly used. But what was the cause of this rest or success? Some say, the conversion of Saul, who before made havoc of the Church; but this is not likely, as he could not be a universal cause of persecution and distress, however active and virulent he might have been during the time of his enmity to the Christian Church. Besides his own persecution, related above, shows that the opposition to the Gospel continued with considerable virulence three years after his conversion; therefore it was not Saul's ceasing to be a persecutor that gave this rest to the Churches. Dr. Lardner, with a greater show of probability, maintains that this rest was owing to the following circumstance: Soon after Caligula's accession to the imperial dignity, the Jews at Alexandria suffered very much from the Egyptians in that city; and at length their oratories were all destroyed. In the third year of Caligula, a.d. 39, Petronius, who was made president of Syria in the place of Vitellius, was sent by the emperor to set up his statue in the temple at Jerusalem. This was a thunder-stroke to the Jews, and so occupied them that they had no time to think of any thing else; apprehending that their temple must be defiled, and the national religion destroyed, or themselves run the risk of being exterminated if they rebelled against the imperial decree. The account given by Josephus will set this in a clear point of view. "Caligula sent Petronius to go with an army to Jerusalem, to set up his statues in the temple, enjoining him if the Jews opposed it, to put to death all that made resistance, and to make all the rest of the nation slaves. Petronius therefore marched from Antioch into Judea, with three legions, and a large body of auxiliaries raised in Syria. All were hereupon filled with consternation, the army being come as far as Ptolemais. The Jews, then, gathering together, went to the plain near Ptolemais, and entreated Petronius in the first place for their laws, in the next place for themselves. Petronius was moved with their solicitations, and, leaving his army and the statues, went into Galilee, and called an assembly of the heads of the Jews at Tiberias; and, having exhorted them without effect to submit to the emperor's orders, said, 'Will ye then fight against Caesar?' They answered that they offered up sacrifices twice every day for the emperor and the Roman people; but that if he would set up the images, he ought first of all to sacrifice the whole Jewish nation; and that they were ready to submit themselves, their wives and children, to the slaughter." Philo gives a similar account of this transaction. See Lardner's Credibility, Works, vol. i. p. 97, etc. It appears, therefore, that, as these transactions took place about the time mentioned in the text, their persecution from the Romans diverted them from persecuting the Christians; and Then had the Churches rest throughout all Judea and Galilee, and Samaria; the terror occasioned by the imperial decree having spread itself through all those places. Were edified - Οικοδομουμεναι, A metaphor taken from a building. 1. The ground is marked out; 2. the ichnograph, or dimensions of the building, ascertained; 3. the foundation is digged; 4. the foundation stone laid; 5. the walls builded up with course upon course; 6. the top-stone brought on; 7. the roof raised, and the whole covered in; and, 8. the interior part fitted up and adorned, and rendered convenient for the intended inhabitant. This figure frequently occurs in the sacred writings, especially in the New Testament. It has its reason in the original creation of man: God made the first human being as a shrine or temple, in which himself might dwell. Sin entered, and the heavenly building was destroyed. The materials, however, though all dislocated, and covered with rubbish and every way defiled, yet exist; no essential power or faculty of the soul having been lost. The work of redemption consists in building up this house as it was in the beginning, and rendering it a proper habitation for God. The various powers, faculties, and passions, are all to be purified and refined by the power of the Holy Spirit, and order and harmony restored to the whole soul. All this is beautifully pointed out by St. Peter, Pe1 2:4, Pe1 2:5 : To whom (Jesus Christ) coming as unto a Living Stone, chosen of God and precious, ye also, as Living Stones, are Built Up a spiritual House, a holy priesthood, to offer up spiritual sacrifices to God by Jesus Christ. And St. Paul, who, from his own profession as a tent-maker, could best seize on the metaphor, and press it into this spiritual service, goes through the whole figure at large, in the following inimitable words: Ye are the Household of God, and are Built upon the Foundation of the apostles and prophets, Jesus Christ himself being the chief Cornerstone, in whom all the Building, Fitly Framed together, groweth unto a Holy Temple in the Lord: in whom ye also are Builded together for a Habitation of God, through the Spirit, Eph 2:19-22. Edification signifies, therefore, an increase in the light, life, and power of God; being founded on the doctrine of Christ crucified; having the soul purified from all unrighteousness, and fitted, by increasing holiness, to be a permanent residence for the ever-blessed God. Walking in the fear of the Lord - Keeping a continually tender conscience; abhorring all sin; having respect to every Divine precept; dreading to offend him from whom the soul has derived its being and its blessings. Without this salutary fear of God there never can be any circumspect walking. In the comfort of the Holy Ghost - In a consciousness of their acceptance and union with God, through his Spirit, by which solid peace and happiness are brought into the soul; the truly religious man knowing and feeling that he is of God, by the Spirit which is given him: nothing less can be implied in the comfort of the Holy Ghost. Were multiplied - No wonder that the Church of God increased, when such lights as these shone among men. This is a short, but full and forcible description of the righteousness, purity, and happiness of the primitive Church.”
1849
A.D.
1774–1849
“The Church visibly proceedeth still with much comfort and patience; she is perfected by persecution, and by means of the promised infallible protection, she has ever proved herself invulnerable to all the envenomed shafts of her adversaries.”
1863
A.D.
1796–1863
“The Greek term is metaphorical, taken from building. Peace gave occasion to the increase of the faithful, and the more regular performance of all Christian duties, so that the Church appeared like a building in the progress of erection. The peace of the Church, at this time, may have been owing to the consternation produced in the minds of the Jews, by the threat of the Emperor Caligula to erect his statue in the Temple. Joseph de Bello. 1. xi. c. x.”
Source
1871
A.D.
1871
“FLOURISHING STATE OF THE CHURCH IN PALESTINE AT THIS TIME. (Act 9:31) Then had all the churches rest--rather, "the Church," according to the best manuscripts and versions. But this rest was owing not so much to the conversion of Saul, as probably to the Jews being engrossed with the emperor Caligula's attempt to have his own image set up in the temple of Jerusalem [JOSEPHUS, Antiquities, 18.8.1, &c.]. throughout all Judea, and Galilee, and Samaria--This incidental notice of distinct churches already dotting all the regions which were the chief scenes of our Lord's ministry, and that were best able to test the facts on which the whole preaching of the apostles was based, is extremely interesting. "The fear of the Lord" expresses their holy walk; "the comfort of the Holy Ghost," their "peace and joy in believing," under the silent operation of the blessed Comforter.”
Source

Undated

date unknown
date
unknown
Glossa Ordinaria Medieval
“The Church. Such things, as was said above, are often inserted at the end of the narratives and at the beginning, unto the praise of the apostles and of the faith of the Church. And with the consolation. Consolation is given in labour, whence it is plain that the Church was being tried.”
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.