"My faith, indeed, was sufficiently proved when the heretics persecuted me. I was at that time sojourning in the church of Alexandria, and underwent imprisonment and exile which was then the penalty of faithfulness; yet for the sake of any who may wish to put my faith to the test, or to hear and learn what it is I will declare it. I believe that the Trinity is of one nature and godhead, of one and the same power and substance; so that between the Father, the Son and the Holy Ghost there is no diversity at all, except that the one is the Father, the second the Son, and the third the Holy Ghost. There is a Trinity of real and living Persons, a unity of nature and substance."