Mark 21:10 When Jesus entered Jerusalem, the whole city was stirred and asked, "Who is this?"
It would appear that many do not really know who Jesus is. Even Christians do not really know who He is. Many do not have a personal knowledge of who Jesus is, what they have is a general knowledge.
Jesus wants us to have a personal knowledge (not a general opinion) of who He is.
Mathew 16:13-17 When Jesus came to the region of Caesarea Philippi, he asked his disciples, “Who do people say the Son of Man is?”
14They replied, “Some say John the Baptist; others say Elijah; and still others, Jeremiah or one of the prophets.” 15“But what about you?” he asked. “Who do you say I am?” 16Simon Peter answered, “You are the Messiah, the Son of the living God.” 17Jesus replied, “Blessed are you, Simon son of Jonah, for this was not revealed to you by flesh and blood, but by my Father in heaven.
Having told Jesus people's opinion of who He is Jesus requested to know who Peter thought He is. It is
No one can reveal Jesus to you (flesh and blood has not revealed this to you), they can only lead (introduce) you to Him. Only the Father (through the Holy Spirit) can reveal Him to you. Jesus said the Holy Spirit will not speak of Himself but will glorify Him (John 16:13-14).
Do not be satisfied with other people's opinion of who Jesus is, discover Him for yourself and you'll be able to say like Peter, "You are the xxx."