Human Free Will and Divine Will

يُدْخِلُ مَن يَشَآءُ فِى رَحْمَتِهِۦ ۚ وَٱلظَّـٰلِمِينَ أَعَدَّ لَهُمْ عَذَابًا أَلِيمًۢا

He admits whom He wills into His mercy; but the wrongdoers - He has prepared for them a painful punishment.