Day three of the week of creation prepares the earth for all the life that God in His wisdom would bring into being.
Again God doesn’t make any kind of big deal out of what He does on day three. He is all powerful! To speak everything into being is no big task for God Almighty.
He made the land to come to the surface of the planet, and the seas he put in their place. He put everything needed to sustain life on earth in it’s place. He created the different types of plants, grasses, grains, fruits… These He put in place for the animal and human life that He would make in the next few days. God has made all of the variety we see for our enjoyment. He could have made one thing for all living things to eat, but He didn’t. He made tremendous variety for our enjoyment. Not only variety in edibles, but variety in colour, and varieties of texture. What a great, kind God.
I think it is important to note that He defined that the things He created would reproduce after their own kind. They would not over time change into different plants or grains. They would remain as He created them. They all have the stuff necessary bring more of their own kind into being. I am happy knowing that when I eat a certain food it will not all of a sudden be toxic, or all of a sudden change it’s flavour profile, or all of a sudden change the way it looks. It would be a bit of a problem if the limits God set on plants were not there. We would not know what to eat from moment to moment. Life would possibly be more dangerous and precarious! God knows whats best for us, much more in fact than we know for ourselves. That is why we should trust Him. Have faith in Him.
God is the one who sets limits on nature. He is the one who has put that laws of nature into place. He is the one who determines boundaries of life. I’m also very happy to know that the earths gravity will not change. It would be a bit of a bummer if in a moments notice our weight fluctuated because the earths gravity did so. Too little and we would loose our atmosphere, too much and we’d be crushed under the weight of the atmosphere or ourselves.
God is great! We can trust Him. He knows whats best for us. He desires the best for us. He made us, He alone can set the boundaries!