﴿ أَلَآ إِنَّهُمْ يَثْنُونَ صُدُورَهُمْ لِيَسْتَخْفُوا۟ مِنْهُ ۚ أَلَا حِينَ يَسْتَغْشُونَ ثِيَابَهُمْ يَعْلَمُ مَا يُسِرُّونَ وَمَا يُعْلِنُونَ ۚ إِنَّهُۥ عَلِيمٌۢ بِذَاتِ ٱلصُّدُورِ ﴾

“Oh, verily, they [who are bent on denying the truth of this divine writ] are enshrouding their hearts in order to hide from Him. Oh, verily, [even] when they cover themselves with their garments [in order not to see or hear], He knows all that they keep secret as well as all that they bring into the open - for, behold, He has full knowledge of what is in the hearts [of men].”

The sixth verse carries a refutation of what the hypocrites and the disbelievers do. They try to camouflage their hostility, and their antagonistic activism against the Holy Prophet ﷺ as deftly as they could. Their hearts blaze with malice and enmity but they maintain a cool front, find all sorts of covers to hide their true identity and intention and surmise that no one would find out who they were really and what they were doing actually. But, the truth of the matter is that Allah Ta` ala knows it all, that which they let come out in the open and that which they conceal behind all sorts of clothes, covers and curtains: إِنَّهُ عَلِيمٌ بِذَاتِ الصُّدُورِ‌ because, ` He is All Aware of [ even ] what lies in the hearts.'