=Paul's Work at Corinth.= To this needy and important field Paul addressed himself with superlative devotion. Anxious regarding the results of his work in Thessalonica, harassed by poverty and weakened by sickness, he nevertheless devoted himself to teaching both Jews and Gentiles, at the same time plying his trade as a tent-maker. Finding the Jews hostile, he devoted his time almost entirely to the Gentiles, making his home with Titus Justus, whose name suggests Roman origin. Unable to visit the church at Thessalonica, Paul wrote to the Christian community there the two letters known as I and II Thessalonians. At about the same time he appears to have written his famous epistle to the Galatian churches. These letters mark the beginning of that remarkable correspondence which is recorded in the epistles of the New Testament. During this period or at a later visit Paul wrote from Corinth the letter known as the Epistle to the Romans, which contains the fullest and noblest résumé of his doctrines. Corinth was one of the few places which Paul was not compelled to leave under pressure of persecution. After a sojourn of about two years he departed for Syria, stopping for a short time at Ephesus, and finally landing at Cæsarea. =His Third Journey.= After visiting the churches at Jerusalem and Antioch, Paul set out, probably early in the spring, on this third great missionary tour. As in his second journey, his aim was to visit the churches which he had established and to proclaim the Gospel in the city of Ephesus. He first revisited the region of Galatia and Phrygia, and thence, following westward the great caravan route, he apparently went on directly to Ephesus by the higher and more northern road. Ephesus, for the next year or two, became the head-quarters from which he made journeys to the churches in Macedonia and Achaia. Apparently at certain points, as for example at Illyria on the Adriatic, he extended still farther the sphere of his influence.