Quite possibly the greatest question humanity asks itself is this: "Why am I here"?
It is obvious and blatant that humans--theistic or non--strive for meaning in their lives.
If God does not exist, then sadly life is without any objective meaning. It is, unfortunately but most assuredly, senseless. We humans are, so to speak,
"the accidental by-product of nature, a result of mater plus time plus chance. There is no reason for your existence. All you face is death." (Reasonable Faith p. 71).
What we know from science concerning earth is that even from its very beginning it was doomed to end. Breakthroughs in cosmology and biology have shown us that as our universe ages, it expands, becomes colder and less energetic. Matter will collapse, light will cease to exist, and life--humanity, animals, bacteria, etc.--will die out. All of this, science says, is inevitable. It will happen; it has to happen. Earth--for lack of a better term--was, is, and will always be a death trap built for extinction.
If there is no higher deity, life truly is meaningless--at least in the objective sense I'm arguing for. No matter how much we try to attach meaning to our lives, we cannot. We are no more important than, say, the wild, disease-ridden dog that runs and roams our streets, or the mangy, long-tailed rat that is resident to our local sewer system. Sadly, even the disgusting cesspool of bacteria exponentially multiplying on the back side of our toilet has the equivalent significance of a human being.
And because life is without meaning in the absence of God, we as humans
"just kill time waiting--for what, we don't know" (Reasonable Faith p. 74).
As for morality, it truly makes no difference if you and I have modeled our lives after Mother Teresa or Adolf Hitler--for both people, without God, are one in the same. In a world without an objective, moral law giver, how could you and I differentiate between good and evil? We can't. If life is without meaning, statements of moral values are indifferent.
Without God we are accidental by-products of nature, here by chance, awaiting our fate. Life truly is senseless without Him.
tyler m taber