The Arrival of the Moors.
Witiza, the son of Egica, is described sometimes as a paragon of virtue and sometimes as a veritable fiend; the latter description of him is the one generally given by ecclesiastical writers. Lucas de Tuy, Archbishop Rodrigo, Ambrosio de Morales, Juan do Mariana, and other Spanish historians hold that this king, to further heretical ends, misused the previous decisions of the councils, that he recalled the exiled Jews, granted them privileges, and even entrusted them with public offices. Whether this be true, or whether, as is more probable, he oppressed them as his predecessors had done, it remains a fact that the Jews, either directly or through their coreligionists in Africa, encouraged the Mohammedans to conquer Spain and that they greeted them as their deliverers.
Jewish Encyclopedia, “SPAIN”, 1906