Flesh and Blood Has not Revealed it
If you were present on that occasion, listening to that lowly Galilean carpenter, would you have boldly confessed Him to be the Son of God? How would you have formed your opinion? Some might say this is not a fair question, for Jesus said that His Father "revealed” His identity to Peter—so Peter had special revelation about the identity of Jesus which we do not have today. But I want you to consider this question, “How did the Father reveal to Peter the identity of Christ?”
Introduction:
With Cæsarea Philippi as a backdrop we have a dramatic picture
The disciples evidently had no problem in understanding the designation “Son of Man” as Jesus’ personal reference to himself (cf. Mark 8:27). The usage here reminds the reader of Jesus’ humble earthly service (8:20; 10:23; 12:8, 32; 13:37, 41).
Would you have confessed like Peter did?
However, Peter’s Christological insight should not be construed as a sudden flash of insight, but was fundamentally grounded in his observation of Jesus’ performance in word and deed. As a matter of fact, Jesus’ entire ministry was performatively God’s revelation concerning the mystery associated with his person.