﴿ نَّحْنُ أَعْلَمُ بِمَا يَقُولُونَ ۖ وَمَآ أَنتَ عَلَيْهِم بِجَبَّارٍۢ ۖ فَذَكِّرْ بِٱلْقُرْءَانِ مَن يَخَافُ وَعِيدِ ﴾

“Fully aware are We of what they [who deny resurrection] do say; and thou canst by no means force them [to believe in it]. Yet none the less, remind, through this Qur’an, all such as may fear My warning.”

We know best what they the disbelievers of the Quraysh say and you are not to be a coercer of them so as to coerce them to embrace faith — but this was revealed before the command to struggle against these disbelievers. So admonish by the Qur’ān those who fear My threat namely believers.