We can begin to expand on this by looking at what it means to say humanity is created in the “image of God” (Gen. 1:26-27; 9:6), a metaphor that is scarce in Scripture but that has come to play a huge part in Christian discussions of the uniqueness of human beings. “Then God said, ‘Let us make humankind in our image’” (Gen. 1:26). Today there is fairly widespread agreement that, as used in Genesis at least, image does not refer to a possession or endowment (like mind, reason, free will) but is a relational term. That is, it makes no sense without considering our relation to God – as God’s unique “counterpart” or covenant partner (we can know and love God in return) – and because of that, to other creatures, human and nonhuman, animate and inanimate.
Crucial also is the notion of representation: as God’s counterparts, human beings are God’s earthly representatives, his vice-regents, in the way that an ancient monarch was seen to represent a god or a physical image to represent a king. Bound up with this is the idea of resemblance or similarity: as God’s partners, humans are in some sense like God (hence the pairing of image with likeness). In short, to say that we are created in God’s image is to say that we are created as God’s unique counterparts and hence God’s representatives on earth, embodying, as creatures and alongside other creatures, the action and presence of God in and to the word.”
(Jeremy S. Begbie, Resounding Truth, p. 202)