Exposition of the Old and New Testament, by John Gill, [1746-63], at sacred-texts.com
The city of Ephesus is, by Pliny (a), called the other light of Asia; Miletus was one, and Ephesus the other: it was the metropolis of the lesser Asia, and one of the twelve cities of Ionia, and the first and chief of them: it is said to be built by the Amazons (b): it was famous for the magnificent temple of Diana; and the inhabitants of it were very much given to superstition and idolatry, and even to devilish arts, Act 19:19. It abounded with orators and philosophers, and men of great wisdom and learning (c); and was formerly a very rich, trading, flourishing city, but now a village, and a poor desolate place; it retains the name of Efeso, though the Turks call it Aia Salik. Hither the Apostle Paul first went after he had been at Corinth, though he then made but a short stay; when he came thither again, he found twelve disciples, and was the instrument of making a great many more: here he continued two or three years and formed a Gospel church, very large and flourishing, to whom he writes this epistle; and which was written by him when he was a prisoner at Rome, as appears by several passages in it, Eph 3:1, and seems to have been written much about the same time as were the epistles to the Philippians, and to the Colossians, and to Philemon. Dr. Hammond thinks it was written about the year 58, and Dr. Lightfoot places it in 59, and the fifth year of Nero. The occasion of it was the foresight the apostle had of false teachers that would spring up in this church, after his death, and spread their pernicious doctrines, and draw away disciples after them, and do great mischief in the church; wherefore the design of this epistle is to establish the saints in the doctrines of the Gospel, that so they might not be carried away with the errors of the wicked: the subject matter of it is most excellent; it treats of the most sublime doctrines of grace, of divine predestination, and eternal election, of redemption by Christ, and of peace and pardon by his blood, of conversion by the power of efficacious grace, and of salvation by the free grace of God, in opposition to works: it also very largely treats of the nature and usefulness of the Gospel ministry, and of gifts qualifying for it, and of the several duties of religion incumbent on Christians; and the method which is used is exceeding apt and beautiful, for the apostle first begins with the doctrines of the Gospel, which he distinctly handles and explains, and then proceeds to enforce the duties belonging to men, both as men and Christians.