On the creation of the universe question I believe that originally there were three groups of angels...
Archangel Michael - Strong angels
Archangel Gabriel - Wise angels
Archange Lucifer - Worshiping angels
How art thou fallen from heaven, O Lucifer, son of the morning! how art thou cut down to the ground, which didst weaken the nations! For thou hast said in thine heart, I will ascend into heaven, I will exalt my throne above the stars of God: I will sit also upon the mount of the congregation, in the sides of the north: I will ascend above the heights of the clouds; I will be like the most High - Isaiah 14:12-14
So Lucifer, being made a beautiful angel, began to wax proud, and in that arrogance fell with a third of the angels with him...
"there appeared another wonder in heaven; and behold a great red dragon, having seven heads and ten horns, and seven crowns upon his heads. And his tail drew the third part of the stars of heaven, and did cast them to the earth" -Revelation 12:3-4
I believe that those angels were cast down unto the void of space. In that void of space God spoke these words...
And God said, Let there be light: and there was light.- Genesis 1:3
I believe that with these words came the big boom. As in Einstiens theory m = E/c2 so with light and energy came the universe. With the big boom all the galaxies began to flee from the point of origin where they would cool into planets and solar systems. I believe that billions of years would pass until God separated the light and the darkness by creating planets within the solar systems.
All of this required a great deal of time - As we humans are mortal we cannot understand.
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.- Genesis 1:1-4
I believe that billions of years past between Genesis 1:4 and Genesis 1:5
And God called the light Day, and the darkness he called Night. And the evening and the morning were the first day.- Genesis 1:5
The Power of I Am and E/c2 - Joel Osteen - YouTube