Luke writes that Jesus was born of the fruit of David's genitals (Act 2.30): hence he was not some kind of new humanity, freshly brewed with new material, unrelated to fallen humankind; No, he is human like David was human, born on our side of the fall.
And to the naysayers Jesus said, "Before Abraham was, I AM"; hence Jesus pre-dated even Abraham, David' predecessor. But it was not his humanity which pre-dated David; it was his divinity. And notice: he did not say that his Father was the I AM, and that he was copying him. No, Jesus said that he (and this before his glorification) is I AM; that is, Yahweh, the LORD who covenants with Abraham.
Jesus is FULLY GOD and fully man, two realities in one person, united -- but make him anything less than God or anything more than man and you are courting a demon, who is powerless to save you.
Bill
cd: Jd would you say Christ was the same as common man?