What may have been one reason for this? These early disciples of Christ may have been influenced by the fleshly - minded world.
وَأَظْهَرُوا أَنَّهُمْ يُحِبُّونَ ٱللهَ ،‏ إِخْوَتَهُمْ ،‏ وَغَيْرَ ٱلْمُؤْمِنِينَ أَيْضًا .‏