{O you who have believed} — meaning: affirm with your tongues. {If you converse privately, do not converse privately about sin and aggression and disobedience to the Messenger} — as the Jews did regarding this private conversation which has been mentioned.
﴿يَا أَيهَا الَّذين آمنُوا﴾ يَعْنِي: أقرُّوا بالألْسنة ﴿إِذَا تَنَاجَيْتُمْ فَلَا تَتَنَاجَوْا بِالإِثْمِ وَالْعُدْوَانِ وَمَعْصِيَتِ الرَّسُولِ﴾ كَمَا صنعت الْيَهُود من هَذِه النَّجْوَى الَّتِي ذكر.