You say: You all observe what is in the heavens and on earth, but no verses and warnings are useful for the people who are not believing.
Verses 16: 48 says: Have they not seen anything Lord Allah has created? They with their shadows incline to the right and the left prostrating to Allah, and they are humble. Today, Arabic Qur’an reading Fujjar are only reading these verses. Just like Satan didn’t prostrate before Adam by rejecting the command of Lord, these human devils also don’t do the compulsory ‘prostration of Recitation’ mentioned in 15 places in Adhikr. They are hastening to prostrate in their prayers without participating soul so that they are the people upon whom Lord’s punishment is promised as explained in verse 22: 18. It is the same in their case if they are warned or not warned, they would not believe as explained in 2: 6-7. They are the people upon whom the punishment of the Lord is proved true. So, they will not believe as told in verse 36: 7. See the explanations 3: 91; 6: 111 and 7: 185.