﴿ يُعَذِّبُ مَن يَشَآءُ وَيَرْحَمُ مَن يَشَآءُ ۖ وَإِلَيْهِ تُقْلَبُونَ ﴾

“He causes to suffer whomever He wills, and bestows His mercy on whomever He wills; and unto Him you shall be made to return:”

He chastises whomever He will to chastise and has mercy on whomever He will to have mercy and to Him you shall be returned.