Ver. 26,27. See Poole on "Matthew 16:28" and See Poole on "Mark 9:1". Luke seems here to have recorded several sayings of our Saviour, spoken not all at the same time.
Related Commentaries of Luke 9:26
Luke 9:26
26 For whosoever shall be ashamed of me and of my words, of him shall the Son of man be ashamed, when he shall come in his own glory, and in his Father's, and of the holy angels.