At the end of each day the phrase recurs: "God saw that it was good." On the sixth day, after the creation of man, the center of the cosmos, we read: "God saw everything that he had made and behold, it was very good" (Gen ).
Then, in the description of the individual days, the expression recurs: "God said: Let there be...." Through the power of this word of the Creator-"fiat, let there be," the visible world gradually arises.
In the beginning the earth is "without form and void." Later, under the action of God's creative word, it becomes suitable for life and is filled with living beings, with plants and animals, in the midst of which God finally created man "in his own image" (Gen ).
According to the "canons" added to this doctrinal text, the First Vatican Council confirmed the following truths: 1) The one, true God is Creator and Lord "of visible and invisible things" (DS 3021).
2) It is contrary to faith to affirm that only matter exists (materialism) (DS 3022).
The author of the first chapter of Genesis wished to confirm the teaching contained in the Decalogue by inculcating the obligation to keep holy the seventh day.
The account of the work of creation deserves to be read and meditated upon frequently in the liturgy and outside of it.
3) The world was created by God in time, therefore, it is not eternal. 4) The world created by God is constantly maintained in existence by the Creator.
This "maintenance" is, in a certain sense, a continual creation (conservatio est continua creatio).
3) It is contrary to faith to assert that God is essentially identified with the world (pantheism) (DS 3023).
4) It is contrary to faith to maintain that creatures, even spiritual ones, are an emanation of the divine substance, or to affirm that the divine Being by its manifestation or evolution becomes everything (DS 3024).