Surah As-Saffat 37:170
فَكَفَرُوا۟ بِهِۦ ۖ فَسَوْفَ يَعْلَمُونَ
But they disbelieved in it, so they are going to know.
Translation: Saheeh International
Tafsir
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.
Excerpt from Tafsir al-Jalalayn, commentary on 37:170, via Quran.com. The reader has the full commentary and 9 more tafsirs.