Peter Chrysologus — as excerpted in the Catena Aurea on Matthew 1:21

“Let them approach to hear this, who ask, Who is He that Mary bare? He shall save His people; not any other man’s people; from what? from their sins. That it is God that forgives sins, if you do not believe the Christians so affirming, believe the infidels, or the Jews who say, None can forgive sins but God only. (Luke 5:1.)”