“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.”
King James Version (KJV)
16:28 And as an emblem of this, there are some here who shall live to see tho Messiah coming to set up his mediatorial kingdom, with great power and glory, by the increase of his Church, and the destruction of the temple, city, and polity of the Jews.
Mt 16:28 Shall not taste death, till they see the Son of man. The reference is not to his final coming to judge the world, but to his spiritual coming to establish his kingdom. This was fulfilled on the day of Pentecost. Mark shows the meaning by substituting, "Till they have seen the kingdom of God come with power" (Mr 9:1). The "coming of the Son of man in his kingdom" means, therefore, the same as "the kingdom of God come with power". Compare Ac 1:8 Lu 24:49. The kingdom came with power on the day of Pentecost (Ac 2:1).