Gregory of Nyssa, on Gen 1:26

“And he said: Let us make man to our image and likeness: and let him have dominion over the fishes of the sea, and the fowls of the air, and the beasts, and the whole earth, and every creeping creature that moveth upon the earth.”

“If the Son is in nature unlike the Father, how comes it that the likeness He forms of the different natures is one? for He Who said, "Let us make after our image," and by the plural signification revealed the Holy Trinity, would not, if the archetypes were unlike one another, have mentioned the image in the singular: for it would be impossible that there should be one likeness displayed of things which do not agree with one another: if the natures were different he would assuredly have begun their images also differently, making the appropriate image for each: but since the image is one, while the archetype is not one, who is so far beyond the range of understanding as not to know that the things which are like the same thing, surely resemble one another? Therefore He says (the word, it may be, cutting short this wickedness at the very formation of human life), "Let us make man in our image, after our likeness."”

Imported from an open dataset — not yet checked against the printed edition.