Luke 9:27

But I tell you of a truth
And let it be received as such; you may assure yourselves of it, that not only at the last day, the son of man will come in this glorious manner, and show his resentment to all such as have been ashamed of him; but, also

there be some standing here, which shall not, taste of death till they
see the kingdom of God;
the Gospel dispensation visibly taking place, both among Jews and Gentiles, upon the resurrection of Christ, and the pouring fourth of his Spirit; and when it should come in power both in the conversion of God's elect in great numbers, and in the destruction of the Jewish nation, for their rejection, of the Messiah: (See Gill on Matthew 16:28)