Surah Sad Tafseer

أَجَعَلَ الاْلِهَةَ إِلَهًا وَاحِدًا

And the disbelievers said:"This is a sorcerer, a liar. Has he made the gods into One God!"

meaning, does he claim that the One Who is to worshipped is One and there is no god besides Him?

The idolators -- may Allah curse them -- denounced that and were amazed at the idea of giving up Shirk, because they had learned from their forefathers to worship idols and their hearts were filled with love for that. When the Messenger called them to rid their hearts of that and to worship Allah Alone, this was too much for them and they were astounded by it.

They said:

أَجَعَلَ الاْلِهَةَ إِلَهًا وَاحِدًا إِنَّ هَذَا لَشَيْءٌ عُجَابٌ