In 1242, Grosseteste translated the Greek text Testaments of the Twelve Patriarchs into Latin. It was among his most influential works, being cited by Vincent de Beauvais, Bonaventure and Roger Bacon. The book describes the dying words of Jacob's sons, in which they foretell the coming of Christ as the Messiah. The text appeared to prove that Jews had been told of the Messiah, and had written the prophecies down, but had then deliberately ignored and suppressed them. Matthew Paris for instance made this interpretation explicit, saying Grosseteste had exposed the deceit of the Jews to their "great confusion".