Jesus came unto His own and His own received Him not (John 1:11), The following verses answers who Jesus is for those who doubted who He was. If they would only believe the Scriptures.
“And Jesus answered and said, while He taught in the temple, How say the scribes that Christ is the Son of David? For David himself said by the Holy Ghost, The LORD said to my Lord, Sit Thou on My right hand, till I make Thine enemies Thy footstool. David therefore himself calleth Him Lord; and whence is He then his Son? And the common people heard him gladly.” Mark 12:35-37 (KJV)
The Believer’s Bible Commentary gives a good answer for this question:
The scribes had always taught that the Messiah would be a lineal descendant of David. Though true, this was not the whole truth. So the Lord Jesus now posed a problem to those gathered around Him in the temple court. In Psalm 110:1, David spoke of the coming Messiah as his Lord. How could this be? How could the Messiah be David’s Son and his Lord at the same time? To us the answer is clear. The Messiah would be both Man and God. As David’s Son, He would be human. As David’s Lord, He would be divine.
The common people heard Him gladly. Apparently they were willing to accept the fact, even if they might not have understood it fully. But nothing is said of the Pharisees and scribes. Their silence is ominous.
FROM The Believer’s Bible Commentary for Mark 12:35-37.
In the gospel of Matthew, Jesus asked the disciples “Whom do men say that I the Son of Man am?”, and after they had answered what they were hearing others say; He asked them, “But whom say ye that I am?” Peter was the only one who responded; “Thou are the Christ [Messiah], the Son of the Living God.” (Matthew 16:13-16).
The matter of your salvation lies in your answer to that question: Who is Jesus?
Who is Jesus? Your answer must agree with God and His Word if you are to have eternal life.