۞ مَا نَنسَخْ مِنْ آيَةٍ أَوْ نُنسِهَا نَأْتِ بِخَيْرٍ مِّنْهَا أَوْ مِثْلِهَا ۗ أَلَمْ تَعْلَمْ أَنَّ اللَّهَ عَلَىٰ كُلِّ شَيْءٍ قَدِيرٌ (106)
(2:106) We bring a better verse or at least the like of it for whatever we abrogate or cause it to be forgotten. *109
*109). This is in response to a doubt which the Jews tried to implant in the minds of the Muslims. If both the earlier Scriptures and the Qur'an were revelations from God, why was it - they asked - that the injunctions found in the earlier Scriptures had been replaced by new ones in the Qur'an? How could the same God issue divergent injunctions? Furthermore, they expressed their amazement at the Qur'anic indictment of the Jews and Christians for having allowed part of the revelation to be forgotten and lost, pointing out that it was impossible that Divine revelation should be erased from human memory.
In all this, their motive was not to know the truth but to cast doubt on the Divine origin of the Qur'an. In refutation God states that He being the Absolute Sovereign has unlimited authority both to abrogate previous injunctions and to cause people to forget the injunctions He wants them to forget. However, God ensures that whatever He abrogates or causes to be erased from people's memories is replaced by something equally or even more beneficial.