"Whosoever will come after me, let him deny himself, and take up his cross, and follow me." Mark 8:34
Mark 8:27-38"And Jesus went out, and his disciples, into the towns of Caesarea Philippi: and by the way he asked his disciples, saying unto them, Whom do men say that I am?And they answered, John the Baptist; but some say, Elias; and others, One of the prophets.And he saith unto them, But whom say ye that I am? And Peter answereth and saith unto him, Thou art the Christ.And he charged them that they should tell no man of him.And he began to teach them, that the Son of man must suffer many things, and be rejected of the elders, and of the chief priests, and scribes, and be killed, and after three days rise again.And he spake that saying openly. And Peter took him, and began to rebuke him.But when he had turned about and looked on his disciples, he rebuked Peter, saying, Get thee behind me, Satan: for thou savourest not the things that be of God, but the things that be of men.And when he had called the people unto him with his disciples also, he said unto them, Whosoever will come after me, let him deny himself, and take up his cross, and follow me.For whosoever will save his life shall lose it; but whosoever shall lose his life for my sake and the gospel's, the same shall save it.For what shall it profit a man, if he shall gain the whole world, and lose his own soul?Or what shall a man give in exchange for his soul?Whosoever therefore shall be ashamed of me and of my words in this adulterous and sinful generation; of him also shall the Son of man be ashamed, when he cometh in the glory of his Father with the holy angels."
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"And Peter took Him, and began to rebuke Him. But He, turning round, and seeing His disciples, rebuked Peter, saying,* Get away behind Me, Satan, for thy mind is not on the things that are of God, but on the things that are of men." What a solemn lesson, that the Lord should find it needful, at such a time, when, as Matthew shows, He pronounces Simon blessed, and puts special honour on him, to rebuke him thus sternly! How worthless is the fleshly mind even in the chief of the twelve Apostles! In rebuking Peter, because of his carnal dislike of the cross of Christ, He could say, "Get away behind me, Satan," because it was flesh's unbelief, selfishness, and presumption, and not the less because veiled under a pious form. He never said to a saint, Get thee hence, as He said to the devil when he arrogated the worship due to God (cf. Matthew 4:10).†
What was it that so roused our Lord? The very snare to which we are all so exposed - the desire of saving self, the preference of an easy path to the cross. Is it not true that we naturally like to escape trial, shame, and rejection; that we shrink from the suffering which doing God's will, if in such a world as this, must ever entail; that we prefer to have a quiet, respectable path in the earth - in short, the best of both worlds? How easily one may be ensnared into this! Peter could not understand why the Messiah should go through all this path of sorrow. Had we been there we might have said or thought yet worse. Peter's remonstrance was not without strong human affection. He heartily loved the Saviour, too. But, unknown to himself, there was the unjudged spirit of the world. He could not bear that their Master should be so dishonoured and so suffer. There was some unbelief of human iniquity. Could the elders, chief priests, and scribes be so wicked, after all? Moreover, there was a want of understanding that there was no other way to deliver man - that this was the only means of glorifying God about man's sin (John 13:31) Suffer the Lord must unto death, and this under God's hand as well as man's. There could be no salvation without it. And God forbid that we should glory save in the cross, whereby the world is crucified to us and we to the world. Let all know this, the people, the crowd, as well as the disciples: so said Jesus.
"Whosoever desires to come after Me, let him deny himself, and take up his cross and follow Me. For whosoever shall desire to save his life shall lose it; but whosoever shall lose his life for My sake and the Gospel's, shall save it. For what shall it profit a man, if he gain the whole world and lose his own soul? For what should a man give in exchange for his soul? For whosoever shall be ashamed of me and of My words in this adulterous and sinful generation, of him shall the Son of man also be ashamed when He shall come in the glory of His Father with the holy angels."
William Kelly
Excerpt from Major Works Commentary Mark 8