"The word Amen occurs not infrequently in early Christian inscriptions, and that it was often introduced into anathemas and gnostic spells. Moreover, as the Greek letters which form Amen according to their numerical values total 99 (alpha=1, mu=40, epsilon=8, nu=50), this number often appears in inscriptions, especially of Egyptian origin, and a sort of magical efficacy seems to have been attributed to its symbol."