He wasn't just any "son of man." He was also the Son of God.
Originally Posted by Freedom
First of all, even if the phrase “Son of Man” is a reference to Jesus' humanity, it is not a denial of His deity. By becoming a man, Jesus did not cease being God. The incarnation of Christ did not involve the subtraction of deity, but the addition of humanity. Jesus clearly claimed to be God on many occasions (Matthew 16:16,17; John 8:58; 10:30). But in addition to being divine, He was also human (see Philippians 2:6-8). He had two natures (divine and human) conjoined in one person.
Further, Scripture indicates that Jesus was not denying His deity by referring to Himself as the Son of Man. In fact, it is highly revealing that the term “Son of Man” is used in Scripture in contexts of Christ's deity. For example, the Bible says that only God can forgive sins (Isaiah 43:25; Mark 2:7). But as the “Son of Man,” Jesus had the power to forgive sins (Mark 2:10). Likewise, Christ will return to Earth as the “Son of Man” in clouds of glory to reign on Earth (Matthew 26:63-64). In this passage, Jesus is citing Daniel 7:13 where the Messiah is described as the "Ancient of Days," a phrase used to indicate His deity (cf. Daniel 7:9).
Further, when Jesus was asked by the high priest whether He was the “Son of God” (Matthew 26:63), He responded affirmatively, declaring that He was the “Son of Man” who would come in power and great glory (verse 64). This indicated that Jesus Himself used the phrase “Son of Man” to indicate His deity as the Son of God. - Christiananswers.net
But as for the son of man, do you know any of your friends (sons of men) who rise to this level?
“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 nations and peoples 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." Daniel 7:13
"The Son of Man will send out his angels, and they will weed out of his kingdom everything that causes sin and all who do evil. They will throw them into the blazing furnace, where there will be weeping and gnashing of teeth." - Matthew 13:41-42
Have you read the Bible? I was just curious because it seems you missed these things. Or, you were purposefully being disingenuous in your quote.
“For the scientist who has lived by his faith in the power of reason, the story ends like a bad dream. He has scaled the mountains of ignorance; he is about to conquer the highest peak; as he pulls himself over the final rock, he is greeted by a band of theologians who have been sitting there for centuries.” - Robert Jastrow