Understanding man and dating
I think the reason he did so is because, on the face of it, Son of Man is an ordinary phrase for "human being." He was born of a man.
And there's no offense there: who isn't a son of man?
Let me give a common understanding and then a more sophisticated historical understanding.
The common understanding is that "Son of God" implies his deity—which it does—and that "Son of Man" implies his humanity, which it does too. And he is the Son of God, in that he has always existed as the Eternally Begotten One who comes forth from the Father forever. He is the Second Person of the Trinity with all of the divine nature fully in him. He had a human father but he didn't have sex with this virgin until Jesus was conceived.
The more sophisticated and important historical insight is that the term "Son of Man" doesn't merely align him with humanity. And if you read that chapter you'll see that the Son of Man is a very exalted figure: not just a human figure but an exalted figure. If you do a study of the term "Son of Man" in the Gospels you'll see that he didn't refer to himself most often as Son of God but as Son of Man.
He said things like, in Mark , "The Son of Man came not to be served but to serve and to give his life as a ransom for many." So he calls himself Son of Man very often.
Now, before we all get our panties in a bunch, before I get labeled the heinous man-stealer, let me toss out a few more details: James’ wife was on the cusp of no longer being his wife. But to quote Olivia Newton John in her star turn in “Grease,” What I mean to say is that over the course of those 10 hours I couldn’t knock the feeling – despite all those red flags – that James and I might still be a good match. Which brings me to now, two years into our relationship. In this day and age, the briefest jaunt through Facebook reveals significant portions of who this woman is: What she looks like, what parts of herself she likes to advertise.Come and acknowledge me as King." He didn't talk like that. And only when the time was right—mainly when he was on trial for his life, and they said, "Are you the Christ, the Son of the living God?"—did he say, "I am, and you will see the Son of Man coming with great power and glory." So he confessed his open deity right at the point where he knew he would be crucified for it. "Son of Man" has the double meaning of human being and, according to Daniel 7, exalted heavenly one. He was conceived of the Holy Spirit in the virgin Mary. The Bible wants to emphasize that he is fully human.So that's the common understanding: he is both divine and he is human—two natures, one person.