John Calvin on the Image of God in Man

Commentary on Gen 1:26

In our image, etc Interpreters do not agree concerning the meaning of these words. The greater part, and nearly all, conceive that the word image is to be distinguished from likeness. And the common distinction is, that image exists in the substance, likeness in the accidents of anything. They who would define the subject briefly, say that in the image are contained those endowments which God has conferred on human nature at large, while they expound likeness to mean gratuitous gifts. But Augustine, beyond all others, speculates with excessive refinement, for the purpose of fabricating a Trinity in man. For in laying hold of the three faculties of the soul enumerated by Aristotle, the intellect, the memory, and the will, he afterwards out of one Trinity derives many. If any reader, having leisure, wishes to enjoy such speculations, let him read the tenth and fourteenth books on the Trinity, also the eleventh book of the “City of God.”
I acknowledge, indeed, that there is something in man which refers to the Fathers and the Son, and the Spirit: and I have no difficulty in admitting the above distinction of the faculties of the soul: although the simpler division into two parts, which is more used in Scripture, is better adapted to the sound doctrine of piety; but a definition of the image of God ought to rest on a firmer basis than such subtleties.
As for myself, before I define the image of God, I would deny that it differs from his likeness. For when Moses afterwards repeats the same things he passes over the likeness, and contents himself with mentioning the image. Should any one take the exception, that he was merely studying brevity; I answer, (87) that where he twice uses the word image, he makes no mention of the likeness. We also know that it was customary with the Hebrews to repeat the same thing in different words. besides, the phrase itself shows that the second term was added for the sake of explanation, ‘Let us make,’ he says, ‘man in our image, according to our likeness,’ that is, that he may be like God, or may represent the image of God. Lastly, in the fifth chapter, without making any mention of image, he puts likeness in its place, (Gen_5:1.)
Although we have set aside all difference between the two words we have not yet ascertained what this image or likeness is. The Anthropomorphites were too gross in seeking this resemblance in the human body; let that reverie therefore remain entombed. Others proceed with a little more subtlety, who, though they do not imagine God to be corporeal, yet maintain that the image of God is in the body of man, because his admirable workmanship there shines brightly; but this opinion, as we shall see, is by no means consonant with Scripture. The exposition of Chrysostom is not more correct, who refers to the dominion which was given to man in order that he might, in a certain sense, act as God’s vicegerent in the government of the world.
This truly is some portion, though very small, of the image of God. Since the image of God had been destroyed in us by the fall, we may judge from its restoration what it originally had been. Paul says that we are transformed into the image of God by the gospel. And, according to him, spiritual regeneration is nothing else than the restoration of the same image. (Col 3:10, and Eph 4:23.) That he made this image to consist in righteousness and true holiness, is by the figure synecdochee; for though this is the chief part, it is not the whole of God’s image. Therefore by this word the perfection of our whole nature is designated, as it appeared when Adam was endued with a right judgment, had affections in harmony with reason, had all his senses sound and well-regulated, and truly excelled in everything good. Thus the chief seat of the Divine image was in his mind and heart, where it was eminent: yet was there no part of him in which some scintillations of it did not shine forth. For there was an attempering in the several parts of the soul, which corresponded with their various offices. In the mind perfect intelligence flourished and reigned, uprightness attended as its companion, and all the senses were prepared and moulded for due obedience to reason; and in the body there was a suitable correspondence with this internal order. But now, although some obscure lineaments of that image are found remaining in us; yet are they so vitiated and maimed, that they may truly be said to be destroyed. For besides the deformity which everywhere appears unsightly, this evil also is added, that no part is free from the infection of sin.