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. Rom 1:18-20
Here we see the cause of the wrath of God. The apostle explains that it is
the godlessness and wickedness of people, who suppress the truth by their wickedness that causes God’s wrath….
The tragic aspect of life is caused by the attitudes men have and the subsequent actions that follow. Notice the order of this — godlessness and then wickedness. It is the godless attitude that produces the wicked actions, and that is why the wrath of God is being revealed constantly from heaven against man. What is godlessness? Godlessness isn’t necessarily atheism, the belief that God doesn’t exist. Godlessness is acting as though he doesn’t exist. It doesn’t necessarily deny that there is a God, but it never takes any account of him; it doesn’t expect him to be active.
As a result of godlessness, there is unrighteousness or wickedness, selfish and hurtful acts of men toward one another. Why do we act selfishly? Why do we hurt each other? Because we disregard God, and expect there will be no consequences. That is Paul’s analysis. By means of these hurtful and selfish acts, the truth is suppressed.