Origen
Catena Aurea · Matthäusevangelium 16
For what is a man profited, if he shall gain the whole world, and lose his own soul? or what shall a man give in exchange for his soul? For the Son of man shall come in the glory of his Father with his angels; and then he shall reward every man according to his works. Verily I say unto you. There be some standing here, which shall not taste of death, till they see the Son of man coming in his kingdom.
Morally; To those who are nearly brought to the faith, the Word of God wears the form of a servant; but to those that are perfect, He comes in the glory of the Father. His angels are the words of the Prophets, which it is not possible to comprehend spiritually, until the word of Christ has been first spiritually comprehended, and then will their words be seen in like majesty with His. Then will He give of His own glory to every man according to his deeds; for the better each man is in his deeds, so much the more spiritually does he understand Christ and His Prophets. They that stand where Jesus stands, are they that have the foundations of their souls rested upon Jesus; of whom such as stood firmest are said not to taste death till they see the Word of God; which comes in His kingdom when they see that excellence of God which they cannot see while they are involved in divers sins, which is to taste death, forasmuch as the soul that sinneth, dies. For as life, and the living bread, is He that came down from heaven, so His enemy death is the bread of death. And of these breads there are some that eat but a little, just tasting them, while some eat more abundantly. They that sin neither often, nor greatly, these only taste death; they that have partaken more perfectly of spiritual virtue do not taste it only, but feed ever on the living bread. That He says, Until they see, does not fix any time at which shall be done what had not been done before, but mentions just what is necessary; for he that once sees Him in His glory, shall after that by no means taste death.