The names mentioned in the address are all well known—Paul, Silvanus, and Timothy. The three are united in the greeting, and are sometimes, apparently, included in the "we" or "us" of the Epistle; but they are not joint authors of it. It is the Epistle of Paul, who includes them in the salutation out of courtesy, as in the First to the Corinthians he includes Sosthenes, and in Galatians "all the brethren that are with me"; a courtesy the more binding on this occasion that Silas and Timothy had shared with him his missionary work in Thessalonica. In First and Second Thessalonians only, of all his letters, the Apostle adds nothing to his name to indicate the character in which he writes; he neither calls himself an apostle, nor a servant of Jesus Christ. The Thessalonians knew him simply for what he was; his apostolic dignity was yet unassailed by false brethren; the simple name was enough. Silas comes before Timothy as an older man, and a fellow-labourer of longer standing. In the Book of Acts he is described as a prophet, and as one of the chief men among the brethren; he had been associated with Paul all through this journey; and though we know very little of him, the fact that he was chosen one of the bearers of the apostolic decree, and that he afterwards attached himself to Paul, justifies the inference that he heartily sympathised with the evangelising of the heathen. Timothy was apparently one of Paul's own converts. Carefully instructed in childhood by a pious mother and grandmother, he had been won to the faith of Christ during the first tour of the Apostle in Asia Minor. He was naturally timid, but kept the faith in spite of the persecutions which then awaited it; and when Paul returned, he found that the steadfastness and other graces of his spiritual son had won an honourable name in the local churches. He determined to take him with him, apparently in the character of an evangelist; but before he was ordained by the presbyters, Paul circumcised him, remembering his Jewish descent on the mother's side, and desirous of facilitating his access to the synagogue, in which the work of gospel preaching usually began. Of all the Apostle's assistants he was the most faithful and affectionate. He had the true pastoral spirit, devoid of selfishness, and caring naturally and unfeignedly for the souls of men (Phil. ii. 20 f.). Such were the three who sent their Christian greetings in this Epistle.
The greetings are addressed "to the church of (the) Thessalonians in God the Father and the Lord Jesus Christ." No such address had ever been written or read before, for the community to which it was directed was a new thing in the world. The word translated "church" was certainly familiar enough to all who knew Greek: it was the name given to the citizens of a Greek town assembled for public business; it is the name given in the Greek Bible either to the children of Israel as the congregation of Jehovah, or to any gathering of them for a special purpose; but here it obtains a new significance. The church of the Thessalonians is a church in God the Father and the Lord Jesus Christ. It is the common relation of its members to God the Father and the Lord Jesus Christ which constitutes them a church in the sense of the Apostle: in contradistinction from all other associations or societies, they form a Christian community. The Jews who met from Sabbath to Sabbath in the synagogue were a church; they were one in the acknowledgment of the Living God, and in their observance of His law; God, as revealed in the Old Testament and in the polity of Israel, was the element or atmosphere of their spiritual life. The citizens of Thessalonica, who met in the theatre to discuss their political interests, were a "church"; they were one in recognising the same constitution and the same ends of civic life; it was in that constitution, in the pursuit of those ends, that they found the atmosphere in which they lived. Paul in this Epistle greets a community distinct from either of these. It is not civic, but religious; though religious, it is neither pagan nor Jewish; it is an original creation, new in its bond of union, in the law by which it lives, in the objects at which it aims; a church in God the Father and in the Lord Jesus Christ.
This newness and originality of Christianity could not fail to impress those who first received it. The gospel made an immeasurable difference to them, a difference almost equally great whether they had been Jews or heathen before; and they were intensely conscious of the gulf which separated their new life from the old. In another epistle Paul describes the condition of Gentiles not yet evangelised. Once, he says, you were apart from Christ, without God, in the world. The world—the great system of things and interests separated from God—was the sphere and element of their life. The gospel found them there, and translated them. When they received it, they ceased to be in the world; they were no longer apart from Christ, and without God: they were in God the Father and in the Lord Jesus Christ. Nothing could be more revolutionary in those days than to become a Christian: old things passed away; all things became new; all things were determined by the new relation to God and His Son. The difference between the Christian and the non-Christian was as unmistakable and as clear to the Christian mind as the difference between the shipwrecked sailor who has reached the shore and him who is still fighting a hopeless fight with wind and waves. In a country which has long been Christian, that difference tends, to sense at least, and to imagination, to disappear. We are not vividly impressed with the distinction between those who claim to be Christians and those who do not; we do not see a radical unlikeness, and we are sometimes disposed to deny it. We may even feel that we are bound to deny it, were it only in justice to God. He has made all men for Himself; He is the Father of all; He is near to all, even when they are blind to Him; the pressure of His hand is felt and in a measure responded to by all, even when they do not recognise it; to say that any one is ἄθεος, or χωρὶς Χριστοῦ, or that he is not in God the Father and in the Lord Jesus Christ, seems really to deny both God and man.
Yet what is at issue here is really a question of fact; and among those who have been in contact with the facts, among those, above all, who have had experience of the critical fact—who once were not Christians and now are—there will not be two opinions about it. The difference between the Christian and the non-Christian, though historical accidents have made it less visible, or rather, less conspicuous than it once was, is still as real and as vast as ever. The higher nature of man, intellectual and spiritual, must always have an element in which it lives, an atmosphere surrounding it, principles to guide it, ends to stimulate its action; and it may find all these in either of two places. It may find them in the world—that is, in that sphere of things from which God, so far as man's will and intent goes, is excluded; or it may find them in God Himself and in His Son. It is no objection to this division to say that God cannot be excluded from His own world, that He is always at work there whether acknowledged or not; for the acknowledgment is the essential point; without it, though God is near to man, man is still far from God. Nothing could be a more hopeless symptom in character than the benevolent neutrality which evades this truth; it takes away every motive to evangelise the non-Christian, or to work out the originality and distinctiveness of the Christian life itself. Now, as in the apostolic age, there are persons who are Christians and persons who are not; and, however alike their lives may be on the surface, they are radically apart. Their centre is different; the element in which they move is different; the nutriment