He is the radiance of the glory of God and the exact imprint of his nature, and he upholds the universe by the word of his power. —Hebrews 1:3a, ESV
Without the sun, there would be no life on this planet: no plants, animals, vegetables, and any other things that live off the sun. We puny humans live off the sun. We puny humans need the sun. If not, how would the temperatures around the world heat up and cool off on its own? How would we appreciate flowers, go to the beach, enjoy our food, if our place in the Universe, far away from the sun, were as distant from Pluto?
But there is a slight issue: the Moon can't shine on its own. Its glory is hollow, just like that o the Earth. It has no working volcanoes. It has no running water. It barely hangs on to the Universe in motion, like that Christmas ornament left hanging in a corner of the tree. It needs the sun to shine at night; and more often than not, it protects us from the scorching-hot rays of the sun in the wee hours of the morning.
Because nothing can be compared to the further glory the world shall see: even more radiant than the Sun, even more graceful than the moon, even more powerful than the brightest star in the Universe.