15 And the angel of the LORD called unto Abraham out of heaven the second time, 16 And said, "By Myself have I sworn, saith the LORD, for because thou hast done this thing, and hast not withheld thy son, thine only son: 17 That in blessing I will bless thee, and in multiplying I will multiply thy seed as the stars of the heaven, and as the sand which is upon the sea shore; and thy seed shall possess the gate of his enemies; 18 And in thy seed shall all the nations of the earth be blessed; because thou hast obeyed My voice."
I would like to create a neat figure of speech from verse 17. Because the sand and the stars represent the same thing - Abraham's seed - therefore they are the same thing. In other words, the sand is the stars.
This will mean a lot more if we focus on a beach or even a playground full of sand. Imagine each grain of sand representing a star, so the children are actually playing amongst the stars.
I don't believe our heavenly Father made outer space simply for us to look at. I believe it's there for us to explore throughout eternity. It's our playground. Our Father even describes for us the vehicles in which we can explore the heavens in the book of Ezekiel, chapter 1. Every galaxy is loaded with hundreds of billions of stars, and there are more galaxies than we can count, just like innumerable grains of sand. As an example, here is the Hubble Deep Field taken by the Hubble Space Telescope (courtesy the Astronomy Picture of the Day), an image full of galaxies:
What may also help is to imagine a playground where the brand name of some of the toys was Galaxy. And to top it off, this company names some of their toys after constellations or stars, so it's like the children really are playing in the heavens. What if our Father gave each one of us a galaxy to look after? Wouldn't that give us plenty to do for awhile?
It's Gods promise that we're going to live forever (John 3:16), so we're going to need an eternal number of things to do. Outer space appears to be never ending, contrary to the scientists who keep looking for the edges of a universe caused by a big bang. Our curiosity and our desire to look and explore requires vast space. We need to discover new things, and I believe there are an infinite number of stars and planets out in space to allow us to do just that.
1 The heavens declare the glory of God; and the firmament showeth His handiwork.