"Now may our God and Father Himself, and our Lord Jesus Christ direct our way unto you: and the Lord make you to increase and abound in love one toward another, and toward all men, even as we also do toward you."
This is a proof of excessive love, that he not only prays for them by himself, but even in his Epistles inserts his prayer. This argues a fervent soul, and one truly not to be restrained. This is a proof of the prayers made there also, and at the same time also an excuse, as showing that it was not voluntarily, nor from indolence, that they did not go to them. As if he had said, May God Himself cut short the temptations that everywhere distract us, so that we may come directly to you. "And the Lord make you to increase and abound." Do you see the unrestrainable madness of love that is shown by his words? "Make you to increase and abound," instead of cause you to grow. As if one should say, that with a kind of superabundance he desires to be loved by them. "Even as we do also toward you," he says. Our part is already done, we pray that yours may be done. Do you see how he wishes love to be extended, not only toward one another, but everywhere? For this truly is the nature of godly love, that it embraces all. If you love indeed such an one, but do not love such an one, it is human love. But such is not ours. "Even as we do also toward you."
Suppose we first loved him so as to merit his love in return. Then wouldn’t we first choose him so as to merit our being chosen by him? But he who is Truth itself says otherwise and openly contradicts such human vanity by declaring, “You have not chosen me.” Consequently, if it is not you who have chosen, then it is certainly not you who have loved; for how could they choose him whom they did not love? “But it is I,” he says, “who have chosen you.” And how could they possibly fail to choose him afterward or fail to prefer him to all the goods of this world? It was because they were chosen that they chose him. They were not chosen because they had chosen him. There would be no merit in men’s choosing him unless the action of God’s grace in choosing them had gone before. That is why in imparting his blessing to the Thessalonians the apostle Paul declares, “And may the Lord make you to increase and abound in charity toward one another and toward all men.” He who gave this blessing to love one another is the same who gave us the love to love one another.
[AD 407] John Chrysostom on 1 Thessalonians 3:11-12
This is a proof of excessive love, that he not only prays for them by himself, but even in his Epistles inserts his prayer. This argues a fervent soul, and one truly not to be restrained. This is a proof of the prayers made there also, and at the same time also an excuse, as showing that it was not voluntarily, nor from indolence, that they did not go to them. As if he had said, May God Himself cut short the temptations that everywhere distract us, so that we may come directly to you. "And the Lord make you to increase and abound." Do you see the unrestrainable madness of love that is shown by his words? "Make you to increase and abound," instead of cause you to grow. As if one should say, that with a kind of superabundance he desires to be loved by them. "Even as we do also toward you," he says. Our part is already done, we pray that yours may be done. Do you see how he wishes love to be extended, not only toward one another, but everywhere? For this truly is the nature of godly love, that it embraces all. If you love indeed such an one, but do not love such an one, it is human love. But such is not ours. "Even as we do also toward you."