(And if they) i.e. the Jews (had believed) in Muhammad and the Qur'an (and kept from evil) repented from Judaism and sorcery, (a recompense from Allah) a reward from Allah (would be better) than Judaism and sorcery, (if they only knew) if they believed in Allah's reward, but they do not know nor do they believe; and it is said that they knew all this from their Book.