You write that, "Knowing now how almost infinite the universe is I can’t believe Earth is God’s only life giving planet." Try watching Louie Giglio (God and The Universe). Our planet is unique in the galaxy, designed specifically for human life.
I agree with your statement that, "He gave us eyes to see, and a mind capable of learning, growing, and understanding for a reason.", but we disagree on that reason! We have those gifts so that we can more appreciate all He has done for us, how He created a universe for us to marvel at, how, as children of the King, he rewarded us with far more beautiful and amazing things, than we can ever imagine, to show us how much He loves us and how unique and how sepecial we are to Him!
Again, not looking for a religious argument, but the answer to your first question is “no” I wasn’t in any way suggesting that the Bible says the earth is flat.
What I am saying is that even though the Bible and Pythagoras, may have made suggestion, even openly said that the earth was a circle, The religious scholars at the time our version of the Bible was translated didn’t recognize that knowledge, and they were still executing “heretics” who believed that the Earth revolved around the Sun, and their common belief was the earth was flat. Now, with our expanded intelligence we can study the Bible, and see it was correct, The Earth is round.
“Our planet is unique in the galaxy, designed specifically for human life.”
I have to respectfully disagree with this statement. We now know there are 100 billion stars just in our galaxy alone. We have 2 telescopes in space that in just 3 years have found thousands of planets in the “Goldilocks” zone of these stars. These planets show evidence of oxygen-Nitrogen based atmospheres. They also show evidence of moisture.
While we haven’t found evidence of life, we have definitely seen other Planets capable of supporting it.
“He created a universe for us to marvel”
I believe we were given the universe for more than this. One of God’s commands to Noah was “Go forth, be fruitful, and multiply”. Go forth was the first order of business in that statement, and God built a natural curiosity into us. He wants us to expand our mind. He wants us to see what’s out there. There may not be other life out there, but we have to go forth and find out.
To me it’s kind of like saying the Bible says God will heal us, but refusing to go to the Doctor who He gave the understanding of the body to be healed. If God expected us to only be healed by His word why give the surgeon the skills to save us. He gave the scientist the mind to understand complex math, the pilot the skill to fly, the artist, the ability to create beautiful images, or music.
God’s wishes for us are parallel to a parents wishes for a child. He wants us to love Him, and revere Him, but he also wants us to dream, and go, and reach, and discover as much as we can.
We know God loves us, He couldn’t have shown it any better than allowing us the ability to find Him any way we can.