الآية رقم (72) - وَقَالَت طَّآئِفَةٌ مِّنْ أَهْلِ الْكِتَابِ آمِنُواْ بِالَّذِيَ أُنزِلَ عَلَى الَّذِينَ آمَنُواْ وَجْهَ النَّهَارِ وَاكْفُرُواْ آخِرَهُ لَعَلَّهُمْ يَرْجِعُونَ
(72) - (And a faction of the People of the Scripture say [to each other], "Believe in that which was revealed to the believers at the beginning of the day and reject it at its end that perhaps they will abandon their religion,)
This is how would the Jews try to deceive the Muslims in Madina, but why? Because they aimed at raising doubt in Islam and shake the believers from within. Some ignorant people may claim that the people of the Scripture have tested the new religion and didn’t find it compatible with they have, as they are familiar with the revelations of heavens.