The Command to put One's Trust in Allah and to convey the Message

﴿فَتَوَكَّلْ عَلَى اللَّهِ﴾

(So, put your trust in Allah;) in all your affairs, and convey the Message of your Lord.

﴿إِنَّكَ عَلَى الْحَقِّ الْمُبِينِ﴾

(surely, you are on manifest truth.) meaning, you are following manifest truth, even though you are opposed by those who oppose you because they are doomed. The Word of your Lord has been justified against them, so that they will not believe even if all the signs are brought to them. Allah says:

﴿إِنَّكَ لاَ تُسْمِعُ الْمَوْتَى﴾

(Verily, you cannot make the dead to hear) meaning, you cannot cause them to hear anything that will benefit them. The same applies to those over whose hearts is a veil and in whose ears is deafness of disbelief. Allah says:

﴿وَلاَ تُسْمِعُ الصُّمَّ الدُّعَآءَ إِذَا وَلَّوْاْ مُدْبِرِينَ﴾

وَمَآ أَنتَ بِهَادِى الْعُمْىِ عَن ضَلَـلَتِهِمْ إِن تُسْمِعُ إِلاَّ مَن يُؤْمِنُ بِـئَايَـتِنَا فَهُم مُّسْلِمُونَ-﴾

(nor can you make the deaf to hear the call, when they flee, turning their backs. Nor can you lead the blind out of their error. You can only make to hear those who believe in Our Ayat, so they submit (became Muslims).) meaning, those who have hearing and insight will respond to you, those whose hearing and sight are of benefit to their hearts and who are humble towards Allah and to the Message that comes to them through the mouths of the Messengers, may peace be upon them.

﴿وَإِذَا وَقَعَ الْقَوْلُ عَلَيْهِم أَخْرَجْنَا لَهُمْ دَآبَّةً مِّنَ الاٌّرْضِ تُكَلِّمُهُمْ أَنَّ النَّاسَ كَانُوا بِـَايَـتِنَا لاَ يُوقِنُونَ ﴾

(82. And when the Word is fulfilled against them, We shall bring out from the earth a beast for them, to speak to them because mankind believed not with certainty in Our Ayat.)