Question: "What does it mean that Jesus is the Son of Man?"
Jesus is referred to as the “Son of Man” 88 times in the New Testament. A first meaning of the phrase “Son of Man” is as a reference to the prophecy of Daniel 7:13-14, “In my vision at night I looked, and there before me was one like a son of man, coming with the clouds of heaven. He approached the Ancient of Days and was led into his presence. He was given authority, glory and sovereign power; all peoples, nations and men of every language worshiped him. His dominion is an everlasting dominion that will not pass away, and his kingdom is one that will never be destroyed.” The description “Son of Man” was a Messianic title. Jesus is the One who was given dominion and glory and a kingdom. When Jesus used this phrase, He was assigning the Son of Man prophecy to Himself. The Jews of that era would have been intimately familiar with the phrase and to whom it referred. Jesus was proclaiming Himself as the Messiah.
A second meaning of the phrase “Son of Man” is that Jesus was truly a human being. God called the prophet Ezekiel “son of man” 93 times. God was simply calling Ezekiel a human being. A son of a man is a man. Jesus was fully God (John 1:1), but He was also a human being (John 1:14). First John 4:2 tells us, “This is how you can recognize the Spirit of God: Every spirit that acknowledges that Jesus Christ has come in the flesh is from God.” Yes, Jesus was the Son of God—He was in His essence God. Yes, Jesus was also the Son of Man—He was in His essence a human being. In summary, the phrase “Son of Man” indicates that Jesus is the Messiah and that He is truly a human being.