Revelation 9:20-21 And the rest of the men which were not killed by these plagues yet repented not of the works of their hands, that they should not worship devils, and idols of gold, and silver, and brass, and stone, and of wood: which neither can see, nor hear, nor walk: Neither repented they of their murders, nor of their sorceries, nor of their fornication, nor of their thefts.
In the past few commentaries of Revelation 9, we were given insight into the events that will befall humanity during the time of the Tribulation.
In spite of all the casualties and chaos occurring, verse 20 reveals to us that the remaining people during these sequences of events (previous Revelation 9 verses) do not repent of what was made by their hands (technology, knowledge leading to vainglory, etc.). The verse later reveals what they specifically did not repent from the worshiping of devils and idols of wood and precious metals.
Comparing this verse to Revelation 2, the worship in this context can mean that it does not happen all the time but is rather a type of reverence or exalting something or someone more than God. This is the case of modern-day science revering intellectuals in spite of not claiming science as their ‘god’. The rest of the verse characterizes these idols as not being able to see, hear, nor walk which we see in many of the things revered today (our phones, TVs, education, our government, science, etc.). Contrary to this, Jesus can do all of these things and more.
Verse 21 reiterates their unrepentant nature but this time it specifically mentions their murders (killing of believers both Christian and Tribulation saints, abortions, etc.), sorceries (could be pharmaceutical company dealings and magic), fornication (sexual perversion), and theft (money used for evil agendas, the disparity between rich and poor, etc.).