The earth had been completely unformed and empty; in the six-day process of development God had formed it and filled it—but not completely. People must now carry on the work of development: by being fruitful they fill it even more; by subduing it they must form it even more . . . as God’s representatives, [we] carry on where God left off. But this is now to be a human development of the earth. The human race will fill the earth with its own kind, and it will form the earth for its own kind. From now on the development of the created earth will be societal and cultural in nature.