﴿ 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]:”

God exalted be He says Yet they disbelieved in it in other words in the Book that came to them namely the Qur’ān more glorious than all those other scriptures; but they will come to know the consequences of their disbelief.