21طاعَةٌ وَقَولٌ مَعروفٌ ۚ فَإِذا عَزَمَ الأَمرُ فَلَو صَدَقُوا اللَّهَ لَكانَ خَيرًا لَهُمAhmed & SamiraObedience and a generous word/opinion and belief , so if the matter/affair (was) determined/decided , so if they were truthful (to) God (it) would have been better for them.