The Jews had a saying, that "Every man who does not teach his son some trade, teaches him to be a thief"--in which there is a great deal of truth; for if a man has learnt no trade by which he can support himself honestly, there is great danger of his being tempted to obtain a living by dishonest means. It was therefore the custom amongst the Jews, even of the higher classes, who like St. Paul had been well educated as to letters, to teach their sons some "craft" or occupation, whereby they could, if ever it became necessary, earn money to provide themselves with food and clothes, and such things as are needful. St. Paul had learnt the trade of tent-making; and he now abode with Aquila and Priscilla, working with them for his daily bread, whilst every sabbath he "reasoned in the synagogue, and persuaded the Jews and the Greeks": trying, that is, to bring them to believe in Jesus Christ. At Corinth, St. Paul was joined by Silas and Timotheus, who had remained at Berea when he was so suddenly sent to Athens: they had afterwards returned to Thessalonica, from whence they now came to Corinth, and gave St. Paul an account of what they had been doing since he left them. In consequence of what he now heard from Silas and Timotheus, St. Paul wrote an Epistle or letter to the Thessalonians, who had become Christians. In this letter, St. Paul tells the Thessalonians, how thankful he is to hear that those who had become Christians, were trying to do all that the Gospel taught them they ought to do: and then he assures them, that he prays to God to give them more and more faith, and to make them love Jesus better and better. Then the Apostle warned them not to listen to any teachers, who might try to teach them anything different to what he, and Silas, and Timothy, had already taught them. St. Paul also told the Thessalonian Christians, that they must endeavour to be good and holy; and he gave them many particular directions for their conduct, one of which is, "Pray without ceasing." The Apostle ends his letter with a prayer, that God will keep them free from all sin both in body and soul. This letter of St. Paul's is to be found in the Bible, where it is called, "The First Epistle of Paul the Apostle to the Thessalonians." Chapter XVII.--ST. PAUL FINISHES HIS SECOND APOSTOLIC JOURNEY.