56. This marks the beginning of the third discourse of this surah. Its contents invite the conclusion that the surah was revealed sometime between the battles of Badr and Uhud. The subjects of these three discourses are so closely interrelated that some commentators have wrongly understood the verses which follow to be part of the foregoing discourse. From the whole tenor of the discourse which now begins, however, it is evident that it is addressed to the Jews.
57. The invitation here is for the two parties to agree on something believed in by one of them, the Muslims, and the soundness of which could hardly be denied by the other party, the Christians. For this was the belief of their own Prophets and had been taught in their own scriptures.