Surah Fussilat Tafseer

وَمَا كُنتُمْ تَسْتَتِرُونَ أَنْ يَشْهَدَ عَلَيْكُمْ سَمْعُكُمْ وَلَا أَبْصَارُكُمْ وَلَا جُلُودُكُمْ

And you have not been hiding yourselves (in the world), lest your ears and your eyes and your skins should testify against you;

means, their organs and skins will say to them, when they blame them for testifying against them, `you did not hide from us what you used to do, on the contrary, you openly committed disbelief and sin, and you claimed that you did not care, because you did not believe that Allah knew about all your deeds.'

Allah says:

وَلَكِن ظَنَنتُمْ أَنَّ اللَّهَ لَا يَعْلَمُ كَثِيرًا مِّمَّا تَعْمَلُونَ