Studies in Genesis
And God saw that it was good.
And God blessed them, saying, “Be fruitful and multiply and fill the waters in the seas, and let birds multiply on the earth.”
And there was evening and there was morning, the fifth day. (Genesis 1:20-23 ESV)
By the end of the fifth day God accomplished everything He determined to do up to that time. An environment is in place made to sustain the living plants and creatures He created and to provide all of the food needed for life. He always perfectly finishes what He begins.
Over what appears as a long period of time God creates life that breaths, moves and flies. Previously, on the third day, He created plant life, flora, fruits and vegetables, grass and trees. Then, on day four, He created the Sun and Moon, the greater light to govern the day and the lesser to govern the night. On fifth day He created some animal life, fauna, the sea creatures and the birds of the air.
Every living thing He created, and will create, filled the Earth, blessed with the natural ability to reproduce after its own kind. Each species of grass reproduces the same grass. So, too, each different species of vegetables and fruit tree are blessed, making more of the same. Plant life, as part of a life cycle, produces seeds which grows more of the same. So too, the sea creatures and the birds of the air reproduce after their own kind. A fish does not reproduce a bird, or that which is rooted reproduce that which moves, swims or flies.
All He has done is according to His eternal logic and design, in His power and strength. He established the laws of nature and of the universe according to His eternal determination. Our comprehension of His laws suggests a different order of events. For example, the solar system needed to be in place before life on earth could self-create. Plants need light and without a sun there is insufficient light. Yet, on day one God tells us He created light. Combined with the atmosphere He created on day two, this light and environment was sufficient to sustain plant life He created on day three.
Another example is the fossil record, which shows a great many land animals coming into existence somewhere between the first sea creature and the first flying bird. Most, if not all, of these land creatures are now extinct. Yet, sea creatures and creatures of the air, birds, are plentiful.
God does not give us a blow by blow with encyclopedia entries for any of His creation. He does tell us what He has done on each day in a broad, all encompassing way. We want to know exactly what happened so we can control Him. He told us what happened because He is in control, and we are not.