29. Uzair (Ezra) lived during the period around 450 B.C. The Jews regarded him with great reverence as the revivalist of their Scriptures which had been lost during their captivity in Babylon after the death of prophet Solomon. So much so that they had lost all the knowledge of their law, their traditions and of Hebrew, their national language. Then it was Ezra who re-wrote the Old Testament and revived the law. That is why they used very exaggerated language in his reverence which misled some of the Jewish sects to make him ‘the son of God’. The Quran, however, does not assert that all the Jews were unanimous in declaring Ezra as the son of God. What it intends to say is that the perversion in the articles of faith of the Jews concerning Allah had degenerated to such an extent that there were some amongst them who considered Ezra as the son of God.
30. “Those who disbelieved before” were the Egyptians, the Greeks, the Romans, the Persians, etc. The Jews and the Christians were so influenced by their philosophies, their superstitions and fancies that they also invented erroneous creeds like theirs. (See E.N. 101 of Al-Maidah).