I heard this sentence very early at the beginning, and I always felt that there was something false and nominal in it, so I had a deep misunderstanding about it. Now that I have read the Bible Genesis, I know that this is God's will (although it still appears false and nominal).
When I gradually read Genesis, I suddenly found a new perspective on the world.
When God created the world according to the will of the first day, God thought of light. God saw that light was good and divided it into darkness. As if there is no ugly space in the eyes of beauty, I am trapped there and can't move.
The next day, God thought of air, called it the sky, and separated air from water.
On the third day, God thought of land and thought that there could be no water in the world, so he separated water from land and formed dry land. Dry land can't appear bare, so there are vegetables and fruits.
On the fourth day, God thought of the light body, so he created the sun and the moon, and the stars were arranged around, taking their positions.
On the fifth day, God thought of animals. It is not enough to have vitality, but also to have vitality. All kinds of animals have appeared on the ground, adding different colors to the world.
On the sixth day, God finally thought of man, thinking that the lack of a wise man who can manage everything in heaven and earth will make people roam and conquer in heaven and earth.
On the seventh day, everything in the world was finished, and God stopped all his work and took a rest. God blessed the seventh day and called it holy day.
Ps: I feel that God's creation in the Bible is quite interesting, so I wrote it down.