18 Once when Jesus was praying alone, with only the disciples near him, he asked them, "Who do the crowds say that I am?" 19 They answered, "John the Baptist; but others, Elijah; and still others, that one of the ancient prophets has arisen." 20 He said to them, "But who do you say that I am?" Peter answered, "The Messiah of God."
21 He sternly ordered and commanded them not to tell anyone, 22 saying, "The Son of Man must undergo great suffering, and be rejected by the elders, chief priests, and scribes, and be killed, and on the third day be raised." 23 Then he said to them all, "If any want to become my followers, let them deny themselves and take up their cross daily and follow me. 24 For those who want to save their life will lose it, and those who lose their life for my sake will save it. 25 What does it profit them if they gain the whole world, but lose or forfeit themselves? 26 Those who are ashamed of me and of my words, of them the Son of Man will be ashamed when he comes in his glory and the glory of the Father and of the holy angels.
Matthew Henry's Commentary on Luke 9:18-26
Commentary on Luke 9:18-27
(Read Luke 9:18-27)
It is an unspeakable comfort that our Lord Jesus is God's Anointed; this signifies that he was both appointed to be the Messiah, and qualified for it. Jesus discourses concerning his own sufferings and death. And so far must his disciples be from thinking how to prevent his sufferings, that they must prepare for their own. We often meet with crosses in the way of duty; and though we must not pull them upon our own heads, yet, when they are laid for us, we must take them up, and carry them after Christ. It is well or ill with us, according as it is well or ill with our souls. The body cannot be happy, if the soul be miserable in the other world; but the soul may be happy, though the body is greatly afflicted and oppressed in this world. We must never be ashamed of Christ and his gospel.