We ought to notice the reason appended to this description of Paul's enemies: absurd and evil men, he says; for all men have not faith. Faith, of course, means the Christian faith: all men are not believers in Christ and disciples of Christ; and therefore the moral unreason and perversity of which I have spoken actually exist. He who has the faith is morally sane; he has that in him which is inconsistent with such wickedness and irrationality. We can hardly suppose, however, that the Apostle meant to state such a superfluous truism as that all men were not Christians. What he does mean is apparently that not all men have affinity for the faith, have aptitude or liking for it; as Christ said when He stood before Pilate, the voice of truth is only heard by those who are _of_ the truth. So it was when the apostles preached. Among their hearers there were those who were _of_ the truth, in whom there was, as it were, the instinct for the faith; they welcomed the message. Others, again, discovered no such natural relation to the truth; in spite of the adaptation of the message to human needs, they had no sympathy with it; there was no reaction in their hearts in its favour; it was unreasonable to them; and to God they were unreasonable. The Apostle does not explain this; he simply remarks it. It is one of the ultimate and inexplicable facts of human experience; one of the meeting-points of nature and freedom which defy our philosophies. Some _are_ of kin to the gospel when they hear it; they have faith, and justify the counsel of God, and are saved: others are of _no_ kin to the gospel; its wisdom and love wake no response in them; they have not faith; they reject the counsel of God to their own ruin; they are preposterous and evil men. It is from such, as hinderers of the gospel, that Paul prays to be delivered.
In the two verses which follow, he plays, as it were, with this word "faith." All men have not faith, he writes; but _the Lord_ is faithful, and _we_ have _faith_ in the Lord touching you. Often the Apostle goes on thus at a word. Often, especially, he contrasts the trustworthiness of God with the faithlessness of men. Men may not take the gospel seriously; but the Lord does. He is in indubitable earnest with it; He may be depended upon to do His part in carrying it into effect. See how unselfishly, at this point, the Apostle turns from his own situation to that of his readers. The Lord is faithful who will stablish _you_, and keep you from the evil one. Paul had left the Thessalonians exposed to very much the same trouble as beset himself wherever he went; but he had left them to One who, he well knew, was able to keep them from falling, and to preserve them against all that the devil and his agents could do.
And side by side with this confidence in God stood his confidence touching the Thessalonians themselves. He was sure in the Lord that they were doing, and would continue to do, the things which he commanded them; in other words, that they would lead a worthy and becoming Christian life. The point of this sentence lies in the words "in the Lord." Apart from the Lord, Paul could have had no such confidence as he here expresses. The standard of the Christian life is lofty and severe; its purity, its unworldliness, its brotherly love; its burning hope, were new things then in the world. What assurance could there be that this standard would be maintained, when the small congregation of working people in Thessalonica was cast upon its own resources in the midst of a pagan community? None at all, apart from Christ. If _He_ had left them along with the Apostle, no one could have risked much upon their fidelity to the Christian calling. It marks the beginning of a new era when the Apostle writes, "We have confidence _in the Lord_ touching you." Life has a new element now, a new atmosphere, new resources; and therefore we may cherish new hopes of it. When we think of them, the words include a gentle admonition to the Thessalonians, to beware of forgetting the Lord, and trusting to themselves; that is a disappointing path, which will put the Apostle's confidence toward them to shame. But it is an admonition as hopeful as it is gentle; reminding them that, though the path of Christian obedience cannot be trodden without constant effort, it is a path on which the Lord accompanies and upholds all who trust in Him. Here there is a lesson for us all to learn. Even those who are engaged in work for Christ are too apt to forget that the only hope of such work is the Lord. "Trust no man," says the wisest of commentators, "left to himself." Or to put the same thing more in accordance with the spirit of the text, there always is room for hope and confidence when the Lord is not forgotten. _In the Lord_, you may depend upon those who _in themselves_ are weak, unstable, wilful, foolish. In the Lord, you may depend on them to stand fast, to fight their temptations, to overcome the world and the wicked one. This kind of assurance, and the actual presence and help of Christ which justified it, are very characteristic of the New Testament. They explain the joyous, open, hopeful spirit of the early Church; they are the cause, as well as the effect, of that vigorous moral health which, in the decay of ancient civilisation, gave the Church the inheritance of the future. And still we may have confidence in the Lord that all whom He has called by His gospel will be able by His spiritual presence with them to walk worthy of that calling, and to confute alike the fears of the good and the contempt of the wicked. For the Lord is faithful, who will stablish them, and preserve them from the evil one.