Truly, I say to you, there are some standing here who will not taste death until they see the Son of Man coming in his kingdom.”
28. Verily, I say to you. As the disciples might still hesitate and inquire when that day would be, our Lord animates them by the immediate assurance, that he will presently give them a proof of his future glory. We know the truth of the common proverb, that to one who is in expectation even speed looks like delay; but never does it hold more...
Christ showed He must suffer; now He shows His disciples must suffer too, and willingly. A true disciple comes after Him as sheep after shepherd, soldiers after captain, not one who prescribes to Him as Peter just did. This is a deliberate choice and cheerful resolution, not accident or another's will.
AI summary
Commenting on Matthew 16:24-28
Verse 28. Verily I say unto you, etc. To encourage them, he assured them that though his kingdom was now obscure and despised--though he was cast out and little known--yet the time was near when he should be regarded in a different manner, and his kingdom be established with great power.