St Matthew 16:24-28

Then Jesus said to his disciples: If any man will come after me, let him deny himself, and take up his cross, and follow me. For he that will save his life, shall lose it: and he that shall lose his life for my sake, shall find it. For what doth it profit a man, if he gain the whole world, and suffer the loss of his own soul? Or what exchange shall a man give for his soul? For the Son of man shall come in the glory of his Father with his angels: and then will he render to every man according to his works. Amen I say to you, there are some of them that stand here, that shall not taste death, till they see the Son of man coming in his kingdom.