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, [2 Cor 5:10] as each one shall receive the things done in the body; 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.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).