For his invisible attributes, namely, his eternal power and divine nature, have been clearly perceived, ever since the creation of the world, in the things that have been made. So they are without excuse. (ESV)
I have genuine compassion for those who do not know God as I do. The plight of every man on earth is that they have a sinful nature that rebels against the knowledge of God's existence. Many men and women claim that God simply does not exist. Yet, God lays out the argument that his invisible attributes, his eternal power and divine nature are clearly seen in the Creation of the world.
Many scientists and philosophers gather together and collectively reject the revelation of God that is found in the created order. They hold on to theories that lack sense yet pacify their desire to be free of the shackles of faith in God. Yet, not all scientists have embraced folly. There are many who have objectively looked into the heavens and found God. Here is a great quote by Dr. Hugh Ross:
“We know him [God] by two means: First, by the creation, preservation, and government of the universe, since that universe is before our eyes like a beautiful book in which all creatures, great and small, are as letters to make us ponder the invisible things of God: his eternal power and his divinity, as the apostle Paul says in Romans 1:20.”
― Hugh Ross, Why the Universe Is the Way It Is
Hugh Ross specifically mentions Romans 1:20 as an example of one of two means by which God has revealed himself to mankind. We are without excuse because all of mankind has the ability to look at what God has made and come to the conclusion that a divine being made all that we see. To reject that knowledge is not only foolish, but condemns us in our sin.
There are two means of revelation of God to man. The first is nature, as we have aptly observed. The second is the revelation of Jesus Christ. This is what we call the Gospel. Paul will spend the rest of Romans talking about this revelation. In fact, the Apostle Paul gave his life for the privilege of declaring the revelation of Jesus Christ to mankind.
You have two witnesses before you; nature and Jesus Christ. Will you believe and be eternally forgiven of your sin? Or will you reject the knowledge given to you and stand condemned, without excuse?