For the wrath of God is revealed from heaven against all ungodliness and unrighteousness of men who suppress the truth in unrighteousness,
Here it says men suppress the truth. The truth of what? The knowledge about God.
because that which is known about God is evident within them;
This knowledge they have about God, Paul says, is evident within them. But how?
for God made it evident to them.
This is how. God Himself made this knowledge about Him evident to them. You mean God did? How?
For since the creation of the world His invisible attributes, His eternal power and divine nature, have been clearly seen,
Through His creation, they themselves, everyone and anyone calling themselves an atheist has clearly seen His attributes, His power, His nature.
being understood through what has been made, so that they are without excuse. — Romans 1:18-20
They understand through creation. They just suppress the truth in unrighteousness. In reality they have no excuse. There are no real atheists. None have ever existed.
You've just done a very, very, very good job of suppressing the truth of God that's been made evident to you.
If you tell yourself a lie over and over for decades you'll be surprised what you can believe. When the curtains are pulled back, and all of your thoughts, every thought you've ever thought is laid bare before you, you will be exposed. So much so that you will be without excuse. You must begin by being completely honest with yourself.
For the choir director. A Psalm of David. The heavens are telling of the glory of God; And their expanse is declaring the work of His hands. Day to day pours forth speech, And night to night reveals knowledge. There is no speech, nor are there words; Their voice is not heard. Their line has gone out through all the earth, And their utterances to the end of the world. In them He has placed a tent for the sun, Which is as a bridegroom coming out of his chamber; It rejoices as a strong man to run his course. Its rising is from one end of the heavens, And its circuit to the other end of them; And there is nothing hidden from its heat. — Psalm 19:1-6
Look, I am aware of Christian doctrine and I have more respect for it than your average Atheist. I am trying to be charitable here, and this is all I have to say:
If there is a God, then he has made the world work through natural processes and has done such a perfect job of it that he has left nary a clue of intelligent design in his work. He did this so that no evidence or proof of his existence could be found, and thus one could only adhere to belief in him out of faith.
Faith in God is a righteous virtue, but it is simply one that I do not have.
Study the anthropic principal while trying to avoid all the pseudoscience attacking it. That's what I did, and it's what got me to rid all of the suppression of God's existence that I had produced over the years. This was decades ago, but here is a summary.
Human beings climb. Always have, always will. First hills, then mountains, then pinnacles so high they're called "death zones." That's as high as legs could carry them, but not high enough. So people invented balloons, blimps, airplanes, and spacecraft, the higher the better—to a point.
At first, scaling heights made people feel big and powerful. Then they began to feel small, utterly insignificant even, in the hugeness of the cosmos. Today, ironically, the same forces that once shrank humanity's perception of himself now magnify him beyond the wildest imagination, yet with no basis for pride and every reason for humility. Those forces, insatiable curiosity, and capacity for inquiry have lifted humans to a vista, an insight called the anthropic principle, that carries their gaze to the edge of the universe and beyond.
The anthropic principle says that the universe appears "designed" for the sake of human life. More than a century of astronomy and physics research yields this unexpected [😂] observation: the emergence of humans and human civilization requires physical constants, laws, and properties that fall within certain narrow ranges—and this truth applies not only to the cosmos as a whole but also to the galaxy, planetary system, and planet humans occupy. To state the principle more dramatically, a preponderance of physical evidence points to humanity as the central theme of the cosmos. [more like points to God fine tuning, upholding, and sustaining the universe to support life on earth.]
Support for the anthropic principle comes from an unwavering and unmistakable trend line within the data: the more astronomers learn about the universe and the requirements of human existence, the more severe the limitations they find governing the structure and development of the universe to accommodate those requirements. In other words, additional discoveries are leading to more indicators of large-scale and small-scale fine-tuning.
Edit: This is how I came to know that yes, there must be a Creator. From there, I studied the Bible. I challenged the Bible at every opportunity. Studied long lists of supposed Bible contradictions. Studied all the hard questions. Debated atheists daily, mostly to find out what the new fads were over what new ways they were attacking the Bible. I realized every one of their arguments were based off ignorance and fallacy. It cemented my belief that this bible was the inerrant inspired word of God.
From there I began studying the prophecies. Things in the OT that said 100s of years before they were going to happen, and they did. Years later after studying almost everyday I came to realize that I didn't need to go through all the stuff I went through previously to know. The wisdom found in this book and the backing up of its monumental claims was enough for me to know that it's inspired by God. After reading enough of it you begin to understand that this book is beyond the pale of any man's intelligence to write. No one could make this up. The wisdom in it and it's perfect consistency throughout all the books is unmistakably wisdom from God. I learned all of this year's ago before I was ever saved. What I know now compared to then is probably 1000 fold. There is no doubt in my mind that this claim is true.
But know this first of all, that no prophecy of Scripture is a matter of one’s own interpretation, for no prophecy was ever made by an act of human will, but men moved by the Holy Spirit spoke from God. — 2 Peter 1:20-21