﴿ فَكَفَرُوا۟ بِهِۦ ۖ فَسَوْفَ يَعْلَمُونَ ﴾

“And yet, [now that this divine writ has been placed before them,] they refuse to acknowledge it as true! In time, however, they will come to know [what it was that they had rejected]:”

(Yet (now that it is come) the, disbelieve therein) they disbelieve in Muhammad (pbuh) and in the Qur'an when they came to them: (but they will come to know) what will be done to them when they die, in the grave and on the Day of Judgement.