Matthew 7:12

Therefore... whatsoever. — The sequence of thought requires, perhaps, some explanation. God gives His good things in answer to our wishes, if only what we wish for is really for our good. It is man’s highest blessedness to be like God, to “be perfect as our Father in heaven is perfect,” and therefore in this respect too he must strive to resemble Him. The ground thus taken gives a new character to that which otherwise had already become almost one of the “common-places” of Jewish and heathen ethics. Perhaps the most interesting illustration of the former is the well-known story of the Gentile inquirer who went to Shammai, the great scribe, and asked to be taught the law, in a few brief words, while he stood on one foot. The Rabbi turned away in anger. The questioner then went to Hillel, and made the same demand; and the sage turned and said, “Whatsoever thou wouldest that men should not do to thee, that do not thou to them. All our law is summed up in that.” And so the Gentile became a proselyte. A like negative rule is quoted by Gibbon (Decl. and Fall, c. liv., note 2) from Isocrates, not without a sneer, as if it anticipated the teaching of the Christ. The nearest approach to our Lord’s rule is, however, found in the saying ascribed to Aristotle, who, when asked how we should act towards our friends, replied, “As we would they should act to us” (Diog. Laert., v. 1, § 21). All these, however, though we may welcome them as instances of the testimonium animæ naturaliter Christianæ (as Tertullian calls it), are yet wanting in the completeness of our Lord’s precept, and still more do they fall below it in regard of the ground on which the precept rests, and the power given to perform it. Yet even here, too, there is, of necessity, an implied limitation. We cannot comply with all men’s desires, nor ought we to wish that they should comply with ours, for those desires may be foolish and frivolous, or may involve the indulgence of lust or passion. The rule is only safe when our own will has been first purified, so that we wish only from others that which is really good. Reciprocity in evil or in folly is obviously altogether alien from the mind of Christ.