The wrath of God is being revealed from heaven against all the godlessness and wickedness of people, who suppress the truth by their wickedness, since what may be known about God is plain to them, because God has made it plain to them. For since the creation of the world God’s invisible qualities—his eternal power and divine nature—have been clearly seen, being understood from what has been made, so that people are without excuse.The more I study the cosmos the more in awe I am of the Creator. I cannot peer into a single living cell and not be impressed with its complexity, and then give glory to its Creator. Standing atop a mountain and surveying the grandeur around me invariably causes my spirit to soar in thankfulness to the one who is responsible for it.Romans 1:18-20 NIV
I do understand that all of this has taken form over millions and billions of years. And I do understand, at least to some extent, the natural laws that are responsible for that shaping. But that only deepens my awe and appreciation for the one who was able to produce those laws and processes that have served him in bringing the universe, this planet, and the life on it to where it is today.
I have tried hard to imagine all of this coming to be apart from a creator; but have failed miserably. It all screams 'creator' to me. And, according to Paul, the creation delivers that same message to all people. In the passage above Paul claims that God's power and divine nature are clearly seen in the creation itself. And history seems to verify that. Few cultures in the known history of humanity have failed to look into the heavens, or to the world around them, and failed to see someone(s) being responsible for it all.
At least until relatively recent times that is. Now, more and more people have come to be able to imagine all of this coming to be apart from a creator; that it just a fortuitous happenstance. And the signature of the creator in his creation is ignored or ridiculed as something seen only by the weak or fools. But Paul gives us a different reason; that it is because they have chosen to suppress the truth that is so clearly made known by the creator, because of their own condition.
I don't believe that most atheists are any more wicked than many who claim the name of Christ. But admitting there is a creator makes one answerable to that creator. The easiest way to not be answerable to him is to deny his existence. If there is no creator, then I am ultimately not answerable to anyone.
But someday we all will stand before our creator to give answer to him. And responding to him with "I never heard of you" will not be acceptable. The creator has clearly revealed himself to humanity, and so we are without excuse when we come before him.