AND JESUS said to them, Truly and solemnly I say to you, there are some standing here who will in no way taste death before they see the kingdom of God come in [its] power.
But we are able to see Jesus, Who was ranked lower than the angels for a little while, crowned with glory and honor because of His having suffered death, in order that by the grace (unmerited favor) of God [to us sinners] He might experience death for every individual person.
Surely I say to you, this generation (the whole multitude of people living at that one time) positively will not perish or pass away before all these things take place.
And it had been divinely revealed (communicated) to him by the Holy Spirit that he would not see death before he had seen the Lord's Christ (the Messiah, the Anointed One).
Then the sign of the Son of Man will appear in the sky, and then all the tribes of the earth will mourn and beat their breasts and lament in anguish, and they will see the Son of Man coming on the clouds of heaven with power and great glory [in brilliancy and splendor]. [Dan. 7:13; Rev. 1:7.]
So word went out among the brethren that this disciple was not going to die; yet Jesus did not say to him that he was not going to die, but, If I want him to stay (survive, live) till I come, what is that to you?