Ambrose of Milan — as excerpted in the Catena Aurea on Luke 7:36-50

“Matthew has introduced this woman as pouring ointment upon the head of Christ, and was therefore unwilling to call her a sinner, for the sinner, according to Luke, poured ointment upon the feet of Christ. She cannot then be the same, lest the Evangelists should seem to be at variance with one another. The difficulty may be also solved by the difference of merit and of time, so that the former woman may have been yet a sinner, the latter now more perfect.”