Surah Al-Anbya — Ayah 99 (21:99)
لَوۡ كَانَ هَٰٓؤُلَآءِ ءَالِهَةٗ مَّا وَرَدُوهَاۖ وَكُلّٞ فِيهَا خَٰلِدُونَ ٩٩
English translation (Saheeh International)
Had these [false deities] been [actual] gods, they would not have come to it, but all are eternal therein.
Brief commentary
If these worshipped things were in reality gods that were worthy of being worshipped, they would not be entering the hellfire with their worshippers. Yet they shall all be entering it, having to remain in it forever, never to come out of it.