ISB ~ Mark 13 v26

the Son of man:Jesus identifies himself with the royal figure of Dan 7:13.

• Drawing from the details of its original context, Jesus implies that he will be enthroned with the Father and receive a worldwide “kingdom” and “everlasting dominion” (Dan 7:14; cf. Mt 28:18). The oracle foretells his heavenly Ascension (16:19) as well as his Second Coming in glory (Acts 1:11; CCC 673).

See essay:Jesus the Son of Man at Lk 17.