Matthew 16:28
"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."Matthew 16:28 (KJV)
Context from Matthew 16
26
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?
27
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.
28
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.