According to the Bible in Genesis chapter one verses one through five gives us the narrative of what the first day of Creation was like : “In the beginning God created the heaven and the earth. And the earth was without form, and void; and darkness was upon the face of the deep. And the Spirit of God moved upon the face of the waters. And God said, Let there be light: and there was light. And God saw the light that it was good: and God divided the light from the darkness. And God called the light Day and the darkness he called Night. And the evening and the morning were the first day” (Genesis 1:1-5).
According to the Bible, when God first created the heaven (universe) and the Earth, darkness was in outer-space. The universe was dark and the Earth was in that darkness. Ever wonder how dark that darkness was. Just go on a cave tour. The Laurel Caverns in Pennsylvania have tours that are lighted, but they will turn out the lights in a section of the cave to show you that you cannot see a thing in front you. I was there on one of these tours. It was so dark that you could not even see your hand, if you put it in front of your face.
But God who is Light (John 1:9),(John 8:12) gave the Earth light to create day and night on the Earth until He made a permanent light source called the Sun on the fourth day of creation week (Genesis 1:16). The first day started out in darkness (evening) and light (morning) to make the first 24 hour day on the Earth. Earth is not the center of our solar system, the Sun is. Earth is about 93 million miles away from the Sun. It has to be because the Sun is about 867, 000 miles in diameter compared to Earth being about 8,000 miles in diameter. You could fit over 100 earth’s in the sun. The first day of creation was important because God was on His way of establishing the Earth to make it inhabitable for biological life especially His ultimate creation: man (Isaiah 45:18).
Sir Isaac Newton (1642-1727), was a Christian and a creationist who is considered one of the greatest scientists of the last 500 years. He made a working model of our solar system with the Earth and planets known at the time which revolved around the Sun. He clearly saw the implication of celestial mechanics and intricately designed this model to represent our solar system. Sir Isaac Newton, seeing a strong unity between God and nature, by virtue of His sovereignty over nature, refused to speculate on origins. Here is quote from him in his “Philosophiae Naturalis Principia Mathematica”. “The most beautiful system of the sun, planets, and comets, could only proceed from the counsel and dominion of an intelligent and powerful being.”
Psalm 19:1 says, “The heavens declare the glory of God; and the firmament sheweth his handywork.” (King James Version).