(30) And he charged them.--On the assumption of a connection between the writer of this Gospel and St. Peter (see Introduction), the omission of the promise to the latter, recorded so fully by St. Matthew, may fairly be regarded as an evidence of the humility of the Apostle, who shrank from what might seem to savour of self-assertion.

Verse 30. - And he charged them (επετίμησεν) - a strong word, implying almost rebuke, he strictly charged them - that they should tell no man of him. Why was this? There were many reasons for this reticence. The state of parties in Palestine was most inexpedient for such a disclosure at that time. Those who were favorable to his cause would have wanted at once to take him by force and make him a king. In fact, some of them made no secret of their intentions (John 6:15). Those, on the other hand, who were opposed to him were only watching their opportunity to destroy him. Moreover, his own disciples had yet many things to learn; and besides all this, faith in his Godhead would be easier when his death should have been followed by his glorious resurrection and ascension.

8:27-33 These things are written, that we may believe that Jesus is the Christ, the Son of God. These miracles of our Lord assure us that he was not conquered, but a Conqueror. Now the disciples are convinced that Jesus is the Christ; they may bear to hear of his sufferings, of which Christ here begins to give them notice. He sees that amiss in what we say and do, of which we ourselves are not aware, and knows what manner of spirit we are of, when we ourselves do not. The wisdom of man is folly, when it pretends to limit the Divine counsels. Peter did not rightly understand the nature of Christ's kingdom.And he charged them,.... His disciples, after he had declared his approbation of Peter's confession of faith, and signified he would build his church on that rock, and the gates of hell should not prevail against it: and promised Peter the keys of the kingdom of heaven; and that whatsoever was bound, or loosed by him on earth, should be bound and loosed in heaven; which are omitted by Mark, but related by Matthew, Matthew 16:17, after this he gave a strict and severe charge,

that they should tell no man of him; that he was the Messiah, and the Son of God; See Gill on Matthew 16:20.