Death And The Transfiguration

Igitur postquam et tollendam crucem, et perdendam animam, et damno mundo commutandam vitae aeternitatem monuerat, conversus ad discipulos, ait aliquos ex his futuros, qui gustatui mortem non essent, donec filium hominis in regni sui gloria contuerentur. Ex conditione autem gustatus, tenuem quamdam fidelibus libationem mortis ostendit. Itaque res sequitur. Nam post sex dies, Petrus, Jacobus et Johannes assumuntur seorum, et excelso monte consistunt: ipsisque inspectantibus Dominus transfiguratur, et toto claritatis suae habitu circumsplendet.  Sanctus Hilarius Pictaviensis , In Evangelium Matthaei Commentarius

Therefore after the Lord had exhorted them to take up the cross and to lose their lives and exchange the loss of the world for eternal life, turning to His disciples He said that there would some among them who would not taste death until they had seen the Son of Man in the glory of His kingdom. In His state indeed he tasted it, showing to the faithful a certain slight libation of death. So the deed follows. For after six days Peter and James and John were taken apart and they stood on the high mountain, and the Lord was transfigured in their sight, in all His appearance shining with brightness. Saint Hilary of Poitiers, from the Commentary On The Gospel Of Saint Matthew