40.  Thou hast Twelve Apostles, witnesses of the Cross; and the whole earth, and the world of men who believe on Him who hung thereon.  Let thy very presence here now persuade thee of the power of the Crucified.  For who now brought thee to this assembly? what soldiers?  With what bonds wast thou constrained?  What sentence held thee fast here now?  Nay, it was the Trophy of salvation, the Cross of Jesus that brought you all together.  It was this that enslaved the Persians, and tamed the Scythians; this that gave to the Egyptians, for cats and dogs and their manifold errors, the knowledge of God; this, that to this day heals diseases; that to this day drives away devils, and overthrows the juggleries of drugs and charms.