Charles Spurgeon Commentary Matthew 16:26-28

"For what shall a man be profited, if he shall gain the whole world, and forfeit his life? or what shall a man give in exchange for his life? For the Son of man shall come in the glory of his Father with his angels; and then shall he render unto every man according to his deeds. Verily I say unto you, there are some of them that stand here, who shall in no wise taste of death, till they see the Son of man coming in his kingdom." — Matthew 16:26-28 (ASV)

By this, I suppose he meant that they should see him in his majesty—that, notwithstanding the cross, they should see something of his crown of glory, as they did when they beheld him after his resurrection, and as they did, even better, when he ascended on high; and as some of them did, in vision, when they saw him standing at the right hand of God, even the Father.