"And those who believe in Allah and His messengers and do not make distinction between any of them" is like His saying: "Say, 'We have believed in Allah and in what was revealed to us and what was revealed to Abraham'" and the rest of the verse.
﴿وَالَّذِينَ آمَنُوا بِاللَّهِ وَرُسُلِهِ وَلَمْ يفرقُوا بَين أحد مِنْهُم﴾ هُوَ كَقَوْلِه: ﴿قُولُوا ءامنا بِاللَّهِ وَمَا أُنْزِلَ إِلَيْنَا وَمَا أُنْزِلَ إِلَيْنَا وَمَا أُنْزِلَ إِلَى إِبْرَاهِيم﴾ الْآيَة.