Son of man
'Son of Man' is the title Jesus uses most frequently of himself in the Gospels (over 80 times across all four), and uniquely of himself — no other character uses it to address or describe him during his earthly ministry. In Hebrew and Aramaic poetry ben adam/bar enash can simply mean 'human being,' but the decisive background for the NT usage is Daniel 7:13-14: 'there before me was one like a son of man, coming with the clouds of heaven... He was given authority, glory and sovereign power; all nations and peoples of every language worshiped him. His dominion is an everlasting dominion.' This Danielic figure receives universal, permanent, divine-level authority — making 'Son of Man' simultaneously a self-referential idiom and a claim of cosmic sovereignty.
Jesus's Son of Man sayings fall into three types: present authority ('The Son of Man has authority on earth to forgive sins' — Mark 2:10); suffering and death ('The Son of Man is going to be delivered into the hands of men. They will kill him' — Mark 9:31); and eschatological coming in glory ('the Son of Man coming on the clouds of heaven with power and great glory' — Matt. 24:30). The combination of suffering and glory apparently fuses the Danielic figure with the Isaianic Suffering Servant. At his trial, when asked 'Are you the Messiah, the Son of the Blessed One?', Jesus replies: 'I am... and you will see the Son of Man sitting at the right hand of the Mighty One and coming on the clouds of heaven' (Mark 14:61-62) — explicitly invoking Daniel 7 in a statement the high priest declared blasphemous. The title appears chosen for its capacity to hold both humble self-identification and implicit claim to divine authority in creative tension.