Who is He? Son of man-Son of God

But immediately, when Jesus perceived in His spirit that they reasoned thus within themselves, He said to them, “Why do you reason about these things in your hearts? Which is easier, to say to the paralytic, ‘Your sins are forgiven you,’ or to say, ‘Arise, take up your bed and walk’? But that you may know that the Son of Man has [a]power on earth to forgive sins”—He said to the paralytic, “I say to you, arise, take up your bed, and go to your house.” Immediately he arose, took up the bed, and went out in the presence of them all, so that all were amazed and glorified God, saying, “We never saw anything like this!”
Mark 2:8-12