Warth is one of those things that we as humans really have a hard time doing without sinning or without being selfish is some capacity. God, on the other hand has full perfection in His wrath; wrath without sin. God is without sin.
Romans 1:21-23 starts to explain why God's wrath needs to be satisfied and what mankind does or doesn't do that leads to God's just wrath. Again, I'm just going to insert the verse here because I can't say it any better or clearer than it's said in this text. "For although they knew God, they did not honor Him as God or give thanks to Him, but they became futile in their thinking, and their foolish hearts were darkened. Claiming to be wise, they became fools, and exchanged the glory of the immortal God for images resembling mortal man and birds and animals and reptiles."
When we do not do what we were created to, which is to honor God and praise and glorify Him, we call down His wrath. When we worship man made things, TV, cars, money, beauty, sports, music, possessions, positions, accomplishments, we exchange the glory of the immortal God for things with no value at all. We reject the true and living God and turn to things we consider tangible. What foolish people we are. And it gets worse. God gives us over to the futility of our minds.
Praise God for His Immortal Glory.