[They will be told], "That is because, when Allah was called upon (40:12)

Almuntakhab Fi Tafsir Alquran Alkarim

They are told: This is, in requital of the way you conducted yourselves in life; when Allah alone was invoked you rejected the idea as groundless fiction and you fixed your attention on the negative aspect of your belief, and when other objects of worship were added to Him portraying a corporate deity you accepted the idea, and the thought sweetly crept into your study of imagination. But judgment and judicial decision rest in His hands; He is the Unique Whose attributes belong to the highest regions of thought and reality; the Unique Who is eminently entitled to the designation: The Supreme

Tafseer Tafheem-ul-Quran by Syed Abu-al-A'la Maududi

(40:12) (They will be told): '(The cause of your present state is that) when Allah alone was invoked, you disbelieved; and when others instead of Him were invoked, you believed. Today all judgement lies with Allah, the Most High, the All-Great.' *18

[They will be told], "That is because, when Allah was called upon meaning

*18) That is, "The Judgement now rests entirely with that God alone, Whose Godhead you did not acknowledge, and those others whom you persistently regarded as associates and partners in the powers of Godhead, have no share whatever in the judgement. " (For a fuller understanding of this point, please see verse 45 of Az-Zumar and its E.N. 64). This sentence by itself gives the meaning that there would be no possibility of any way out for the disbelievers from the state of torment, for they did not only deny the Hereafter but they had aversion to their Creator and Sustainer, and they were not satisfied until they had associated Others with Him.
 

[They will be told], "That is because, when Allah was called upon meaning in Urdu

(جواب ملے گا) "یہ حالت جس میں تم مبتلا ہو، اِس وجہ سے ہے کہ جب اکیلے اللہ کی طرف بلایا جاتا تھا تو تم ماننے سے انکار کر دیتے تھے اور جب اُس کے ساتھ دوسروں کو ملایا جاتا تو تم مان لیتے تھے اب فیصلہ اللہ بزرگ و برتر کے ہاتھ ہے"