Bede the Venerable
Catena Aurea · Markusevangelium 8
And when he had called the people unto him with his disciples also, he said unto them, Whosoever will come after me, let him deny himself, and take up his cross, and follow me. For whosoever will save his life shall lose it; but whosoever shall lose his life for my sake and the Gospel’s, the same shall save it. For what shall it profit a man, if he shall gain the whole world, and lose his own soul? Or what shall a man give in exchange for his soul? Whosoever therefore shall be ashamed of me and of my words in this adulterous and sinful generation; of him also shall the Son of man be ashamed, when he cometh in the glory of his Father with the holy angels.
(ubi sup.) Or else the present Church is called the kingdom of God; and some of the disciples were to live in the body until they should see the Church built up, and raised against the glory of the world; for itwas right to make some promises concerning this life to the disciples who were uninstructed, that they might be built up with greater strength for the time to come.