Catena Aurea on Luke 3:23–38: Augustine of Hippo

Matthew indeed wished to set forth God descending to our mortality; accordingly at the beginning of the Gospel he recounted the generations from Abraham to the birth of Christ in a descending scale. But Luke, not at the beginning, but after the baptism of Christ, relates the generation not descending but ascending, as if marking out rather the high priest in the expiation of sins, of whom John bore testimony, saying, Behold, who taketh away the sins of the world. But by ascending he comes to God, to whom we are reconciled, being cleansed and expiated.