Matthew 5:14

It is the nature of a light to emit its rays whithersoever it is carried about, and when brought into a house to dispel the darkness of that house. Thus the world, placed beyond the pale of the knowledge of God, was held in the darkness of ignorance, till the light of knowledge was brought to it by the Apostles, and thenceforward the knowledge of God shone bright, and from their small bodies, whithersoever they went about, light is ministered to the darkness. Or, the city signifies the flesh which He had taken on Him; because that in Him by this assumption of human nature, there was as it were a collection of the human race, and we by partaking in His flesh become inhabitants of that city. He cannot therefore be hid, because being set in the height of God's power, He is offered to be contemplated of all men in admiration of his works. Or, the Lord likened the Synagogue to a corn-measure, which only receiving within itself such fruit as was raised, contained a certain measure of limited obedience. Or, the lamp, i. e. Christ Himself, is set on its stand when He was suspended on the Cross in His passion, to give light for ever to those that dwell in the Church; to give light, He says, to all that are in the house. He instructs the Apostles to shine with such a light, that in the admiration of their work God may be praised, Let your light so shine before men, that they may see your good works. He means not that we should seek glory of men, but that though we conceal it, our work may shine forth in honour of God to those among whom we live.

(non occ.) And therefore let none shut up his faith within the measure of the Law, but have recourse to the Church in which the grace of the sevenfold Spirit shines forth.

After this He leads on to another, a higher image. Ye are the light of the world. Of the world again; not of one nation, nor of twenty states, but of the whole inhabited earth. And a light to the mind, far better than this sunbeam: like as they were also a spiritual salt. And before they are salt, and now light: to teach thee how great is the gain of these strict precepts, and the profit of that grave discipline: how it binds, and permits not to become dissolute; and causes clear sight, leading men on to virtue. A city that is set on a hill cannot be hid, neither do men light a candle, and put it under the bushel. Again, by these words He trains them to strictness of life, teaching them to be earnest in their endeavors, as set before the eyes of all men, and contending in the midst of the amphitheatre of the world. For, look not to this, He saith, that we are now sitting here, that we are in a small portion of one corner. For ye shall be as conspicuous to all as a city set on the ridge of a hill, as a candle in a house on the candlestick, giving light. Where now are they who persevere in disbelieving the power of Christ? Let them hear these things, and let them adore His might, amazed at the power of the prophecy. For consider how great things he promised to them, who were not known even in their own country: that earth and sea should know them, and that they should by their fame reach to the limits of the inhabited world; or rather, not by their fame, but by the working of the good they wrought. For it was not fame that bearing them everywhere made them conspicuous, but also the actual demonstration by their works. Since, as though they had wings, more vehemently than the sunbeam did they overrun the whole earth, sowing the light of godliness. But here He seems to me to be also training them to boldness of speech. For to say, A city set on a hill cannot be hid, is to speak as declaring His own powers. For as that city can by no means be hidden, so it was impossible that what they preached should sink into silence and obscurity. Thus, since He had spoken of persecutions and calumnies, of plots and wars, for fear they might think that these would have power to stop their mouths; to encourage them, He saith, that so far from being hid, it should over-shine the whole world; and that on this very account they should be illustrious and renowned. By this then He declares His own power. In what follows, He requires that boldness of speech which was due on their part; thus saying, Neither do men light a candle and put it under the bushel, but on the candlestick, and it giveth light unto all that are in the house.

He instructs them what should be the boldness of their preaching, that as Apostles they should not be hidden through fear, like lamps under a corn-measure, but should stand forth with all confidence, and what they have heard in the secret chambers, that declare upon the house tops.

(ubi sup.) Not he that suffers persecution is trodden under foot of men, but he who through fear of persecution falls away. For we can tread only on what is below us; but he is no way below us, who however much he may suffer in the body, yet has his heart fixed in heaven. (ubi sup.) By the world here we must not understand heaven and earth, but the men who are in the world; or those who love the world for whose enlightenment the Apostles were sent. (ubi sup.) Or, the mountain is the great righteousness, which is signified by the mountain from which the Lord is now teaching. (ubi sup.) With what meaning do we suppose the words, to put it under a corn-measure, were said? To express concealment simply, or that the corn-measure has a special signification? The putting the lamp under the corn-measure means the preferring bodily ease and enjoyment to the duty of preaching the Gospel, and hiding the light of good teaching under temporal gratification. The corn-measure aptly denotes the things of the body, whether because our reward shall be measured out to us, as each one shall receive the things done in the body; (2 Cor. 5:10.) or because worldly goods which pertain to the body come and go within a certain measure of time, which is signified by the corn-measure, whereas things eternal and spiritual are contained within no such limit. He places his lamp upon a stand, who subdues his body to the ministry of the word, setting the preaching of the truth highest, and subjecting the body beneath it. For the body itself serves to make doctrine shine more clear, while the voice and other motions of the body in good works serve to recommend it to them that learn. For it is not absurd if any one will understand the house to be the Church. Or, the house may be the world itself, according to what He said above, Ye are the light of the world. (Serm. in Mont. i. 7.) Had He only said, That they may see your good works, He would have seemed to have set up as an end to be sought the praises of men, which the hypocrites desire; but by adding, and glorify your Father, he teaches that we should not seek as an end to please men with our good works, but referring all to the glory of God, therefore seek to please men, that in that God may be glorified.