وَإِذَا لَقُوا الَّذِينَ آمَنُوا قَالُوا آمَنَّا وَإِذَا خَلَا بَعْضُهُمْ إِلَىٰ بَعْضٍ قَالُوا أَتُحَدِّثُونَهُم بِمَا فَتَحَ اللَّهُ عَلَيْكُمْ لِيُحَاجُّوكُم بِهِ عِندَ رَبِّكُمْ ۚ أَفَلَا تَعْقِلُونَ (76)
(2:76) When they meet those who believe in Muhammad, they say, "We also believe in him." But when they meet one another in private, they say, "Have you got no sense that you disclose to them those things which Allah has revealed to you so that they might bring them as a proof against you before your Lord? *88
*88). When the Jews talked among themselves they asked their co-religionists to disclose to the Muslims neither the prophesies about the Prophet, nor those verses of the Scriptures on the basis of which they could be reproached for their evil conduct; they thought that the Muslims would make use of scriptural arguments against them before God, and would thus have them pronounced guilty. These were the depths to which Jewish relivious decadence had sunk. They were convinced that if they could succeed in concealing their guilt in this world, they would be saved from censure in the Next. For this reason they were asked if they considered God to be unaware of their deeds, either apparent or hidden.