Al-Mulk • EN-TAFSIR-IBN-ABBAS
﴿ وَأَسِرُّوا۟ قَوْلَكُمْ أَوِ ٱجْهَرُوا۟ بِهِۦٓ ۖ إِنَّهُۥ عَلِيمٌۢ بِذَاتِ ٱلصُّدُورِ ﴾
“AND [know, O men, that] whether you keep your beliefs secret or state them openly, He has full knowledge indeed of all that is in [your] hearts.”
(And keep your opinion secret) about Muhammad (pbuh) through your treachery and betrayal (or proclaim it) through war and fighting, (lo! He is Knower of all that is in the breasts (of men)) He is the Knower of what is in people's hearts of good and evil.