200 270 354-430 asceticism augustine barsanuphius bishopofhippo christianity cristianismo criticism critique critiquetextuelle earlychristianliterature etc filosofiacristã filosofiamedieval freewillanddeterminism freiheit grace(theology) historyofdoctrines interpretation interprétation john monasticandreligiouslife orthodoxeasternchurch philippe predestination prädestination saint spirituallife textual αλληλογραφίαιωάννης