That Jesus’ pa·rou·siʹa is not simply a momentary coming followed by a rapid departure but is, rather, a presence covering a period of time is also indicated by his words recorded at Matthew 24:37-39 and Luke 17:26-30. Here “the days of Noah” are compared to “the presence of the Son of man” (“the days of the Son of man,” in Luke’s account). Jesus, therefore, does not limit the comparison just to the coming of the Deluge as a final climax during Noah’s days, though he shows that his own “presence” or “days” will see a similar climax. Since “the days of Noah” actually covered a period of years, there is basis for believing that the foretold “presence [or “days”] of the Son of man” would likewise cover a period of some years, being climaxed by the destruction of those not giving heed to the opportunity afforded them to seek deliverance.

This, however, still allows for an invisible presence that goes undiscerned by all but the faithful prior to that revelation. We may recall that Jesus, when paralleling his presence with “the days of Noah,” states that in Noah’s time the people “took no note” until watery destruction came upon them, and “so the presence of the Son of man will be.”​—Mt 24:37-39.