Surat Yunus (99-100)

{وَلَوْ شَاء رَبُّكَ لآمَنَ مَن فِي الأَرْضِ كُلُّهُمْ جَمِيعاً أَفَأَنتَ تُكْرِهُ النَّاسَ حَتَّى يَكُونُواْ مُؤْمِنِينَ} (يونس : 99)

99- If Allah wills, the whole people shall be believers but He (Glory be to Him) leaves the choice to them to choose the freedom of faith and choice after He had provided them with reason and showed them the path of goodness and evil and to be responsible for their choices. O Prophet, will you force the people to believe while Allah did not? The matter is not due to you.

{وَمَا كَانَ لِنَفْسٍ أَن تُؤْمِنَ إِلاَّ بِإِذْنِ اللّهِ وَيَجْعَلُ الرِّجْسَ عَلَى الَّذِينَ لاَ يَعْقِلُونَ} (يونس: 100)

100- No soul shall believe but after His Leave and Will, and nothing will be done against His Will. Souls which were predestined not to believe shall not believe because Allah is All-Knowing of those whose hearts were open for faith and of those who do not accept the truth and insist on disbelief. Souls which are predestined to believe shall not disbelieve and souls which are predestined not to believe shall not believe.

The author of "Fi Zhilal Al Qur'an" said: The meaning is: Souls shall not believe except when they go according to the method of Allah and following the ways of guidance, then Allah shall guide them to faith by His Leave. So, they will not believe but according to His Will. People only walk in the road of guidance then Allah destines for them the final destination and reward them for their effort in reaching guidance.

Allah destines disbelief and error for those who do not use their minds in understanding the Ayahs of Allah, for He is the Just and Wise who guides those who approach Him and misleads those who refuse obedience.