﴿ وَأُمْلِى لَهُمْ ۚ إِنَّ كَيْدِى مَتِينٌ ﴾

“for, behold, though I may give them rein for a while. My subtle scheme is exceedingly firm!”

The next verse (183) is also related with 'Istidraj'. It said: وَأُمْلِي لَهُمْ ۚ إِنَّ كَيْدِي مَتِينٌ ﴿183﴾ "And I give them respite. Surely, My plan is firm." That is, the disbelievers are left to enjoy their worldly life just for a while. Then, they shall be caught by punishment.