Matthew 16:23

But He turned and said unto Peter, Get thee behind Me, Satan; thou art an offense unto Me; for thou savorest not the things that be of God, but those that be of men.

Peter, the impulsive, probably filled with a feeling of satisfaction on account of the high praise which the Lord had bestowed upon him, laid his hand upon Jesus, or seized Him from behind, as though he would shelter Him by main force. At the same time, he began most emphatically to chide Christ: Far be it from Thee; may God avert it by all means! It was a well-meant, but altogether meddlesome interference with the business of Christ. He did not get very far, for Jesus, having turned around, gave him such a sharp rebuke as no other disciple ever got. A Satan, an adversary, He called him; He accused him of tempting Him to do wrong. Peter's thoughts were not in a line with God's will and work, but were solely the product of his own mind and heart. He was still concerned with his own problems only; he had not acquired the wider vision necessary in the kingdom of God; his thoughts were yet of the earth, earthly. "This is the meaning of Christ, in this serious matter, but directed against a dear apostle: Ah, Peter, thou didst answer correctly when I asked thee and all disciples, that I am Christ, the Son of the living God; but now, since thou hearest that I shall be crucified, thou understandest not the wonderful counsel of God, and art bothered with thy flesh and carnal thoughts, and speakest without the revelation of the Father only thy own ideas, that is, foolish and carnal things. Therefore get thee behind Me; far be it from Me that I should prefer thy carnal wisdom to the will of the Father: much rather would I lose thee and all than that I, upon thy objection, should not obey My Father. Here thou art altogether a fool and dost not understand what is carried out through the Son of the living God, whom thou hast confessed."