Consider this comparison: Each of us is less than a speck in the vastness of our city or town; our city or town is but a speck on the earth; the earth is but a speck in the vastness of our solar system; our solar system is but a speck in the vastness of our galaxy; and our galaxy is but a speck in the vastness of the universe of the 100 billion or more galaxies.
This Creator has unimaginable power. And we know that He is holy, without flaw, pure and perfect. He cannot lie. You can always take what He says to the bank. He always tells the truth, without exception. The Bible says, "God is not a man, that he should lie" (Numbers 23:19).
He has revealed other attributes of Himself, such as omnipotence (all power), omniscience (all knowing), omnipresence (everywhere present), just, loving, merciful, faithful, to name a few.