Origen

“ For there is found in treatises on magic in many countries such an invocation of God, and assumption of the divine name, as implies a familiar use of it by these men in their dealings with demons. These facts, then—adduced by Jews and Christians to prove the sacred character of Abraham, and Isaac, and Jacob, the fathers of the Jewish race—appear to me not to have been altogether unknown to Celsus, but not to have been distinctly set forth by him, because he was unable to answer the argument which might be founded on them. ”

“ And the names of these individuals possess such efficacy, when united with the name of God, that not only do those belonging to the nation employ in their prayers to God, and in the exorcising of demons, the words, “God of Abraham, [3] and God of Isaac, and God of Jacob,” but so also do almost all those who occupy themselves with incantations and magical rites. ”