The Ants
وَمَآ أَنتَ بِهَـٰدِى ٱلْعُمْىِ عَن ضَلَـٰلَتِهِمْ ۖ إِن تُسْمِعُ إِلَّا مَن يُؤْمِنُ بِـَٔايَـٰتِنَا فَهُم مُّسْلِمُونَ
And you cannot guide the blind away from their error. You will only make hear those who believe in Our verses so they are Muslims [submitting to Allah].
Nearby ayahs help place verse 27:81 in sequence and meaning.
فَتَوَكَّلْ عَلَى ٱللَّهِ ۖ إِنَّكَ عَلَى ٱلْحَقِّ ٱلْمُبِينِ
So rely upon Allah; indeed, you are upon the clear truth.
إِنَّكَ لَا تُسْمِعُ ٱلْمَوْتَىٰ وَلَا تُسْمِعُ ٱلصُّمَّ ٱلدُّعَآءَ إِذَا وَلَّوْا۟ مُدْبِرِينَ
Indeed, you will not make the dead hear, nor will you make the deaf hear the call when they have turned their backs retreating.
۞ وَإِذَا وَقَعَ ٱلْقَوْلُ عَلَيْهِمْ أَخْرَجْنَا لَهُمْ دَآبَّةً مِّنَ ٱلْأَرْضِ تُكَلِّمُهُمْ أَنَّ ٱلنَّاسَ كَانُوا۟ بِـَٔايَـٰتِنَا لَا يُوقِنُونَ
And when the word befalls them, We will bring forth for them a creature from the earth speaking to them, [saying] that the people were, of Our verses, not certain [in faith].
وَيَوْمَ نَحْشُرُ مِن كُلِّ أُمَّةٍ فَوْجًا مِّمَّن يُكَذِّبُ بِـَٔايَـٰتِنَا فَهُمْ يُوزَعُونَ
And [warn of] the Day when We will gather from every nation a company of those who deny Our signs, and they will be [driven] in rows