Psalms 122:8

8.For the sake of my brethren and neighbors. He specifies two causes on account of which he felt a care about the Church, for the purpose of stirring up, by his example, all the faithful to exercise the same care. These words, however, seem to contain a tacit contrast. Among the wicked and malicious he might be the object of suspicion, or, at least, he was in danger of being slandered; as if, in commending Jerusalem, he had rather an eye to his own particular advantage than to the public welfare. In order, therefore, to remove all ground for objecting, that in thus speaking he was craftily endeavoring to establish his own kingdom, he protests, that he is not influenced by personal considerations, but by a concern for the whole Church, which he embraced with a sincere affection of heart. I will speak, says he, O Jerusalem! of thy peace, not because it will be profitable for me or mine, but because thy prosperity shall extend itself to all the children of God; for under the term brethren he doubtless comprehends all believers that he did so, because the worship of God so far from remaining entire would go to ruin unless Jerusalem continued standing. If then the salvation of our brethren is regarded by us as an object of importance, if religion is with us a matter of heart-work, we ought, at the same time, as much as in us lies, to take an interest in the prosperity of the Church. Whence it follows, that such as are indifferent about her condition, are no less cruel than impious; for if she is “the pillar and foundation of truth,” the inevitable consequence of her destruction must be the extinction of true piety. And if the body is destroyed, how can each of the members fail to be involved in destruction? Farther, this passage teaches us, that the Church is not an empty title, but must be sought for where the true religion prevails. Whence it appears, how foolish the Papists are, who, notwithstanding their having rejected and overthrown the doctrine of the Gospel, yet mightily boast of the name of the Church.