A common misinterpretation views this as Jesus predicting his second coming within the disciples' lifetimes, leading to claims of failed prophecy since that event has not occurred; however, it refers not to the final consummation but to previews like the Transfiguration and kingdom inaugurations through resurrection and the Spirit, with 'some' specifically indicating not all but a select few who experienced these revelations.
Luke 9:27
King James Version (1769)
27 But I tell you of a truth, there be some standing here, which shall not taste of death, till they see the kingdom of God.
Jesus assures his disciples that some present will witness a manifestation of God's kingdom before dying, pointing to the immediate Transfiguration where Peter, James, and John behold his divine glory alongside Moses and Elijah as a foretaste of kingdom power, and further fulfilled in his resurrection, ascension, and Pentecost outpouring of the Spirit, inaugurating the kingdom's presence amid his followers.