﴿ يُثَبِّتُ ٱللَّهُ ٱلَّذِينَ ءَامَنُوا۟ بِٱلْقَوْلِ ٱلثَّابِتِ فِى ٱلْحَيَوٰةِ ٱلدُّنْيَا وَفِى ٱلْءَاخِرَةِ ۖ وَيُضِلُّ ٱللَّهُ ٱلظَّٰلِمِينَ ۚ وَيَفْعَلُ ٱللَّهُ مَا يَشَآءُ ﴾

“[Thus,] God grants firmness unto those who have attained to faith through the word that is unshakably true in the life of this world as well as in the life to come; but the wrongdoers He lets go astray: for God does whatever He wills.”

God confirms those who believe by a firm saying namely the profession of His Oneness in the life of this world and in the Hereafter that is in the grave when the two angels question them about their Lord their religion and their Prophet and they respond correctly as reported in the hadīth of the two Shaykhs al-Bukhārī and Muslim; and God sends astray the evildoers the disbelievers and therefore they are not guided to the correct response saying instead ‘We do not know’ as reported in the hadīth; and God does what He will.