Ambrose of Milan — as excerpted in the Catena Aurea on Luke 12:8-12

“Truly by the Son of Man we understand Christ, Who by the Holy Spirit was born of a virgin, seeing that His only parent on earth is the Virgin. What then, is the Holy Spirit greater than Christ, that they who sin against Christ should obtain pardon, while they who offend against the Holy Spirit are not thought worthy to obtain it? But where there is unity of power there is no question of comparison.”