Theophylact of Ohrid
Catena Aurea · Markusevangelium 14
And being in Bethany in the house of Simon the leper, as he sat at meat, there came a woman having an alabaster box of ointment of spikenard very precious; and she brake the box, and poured it on his head. And there were some that had indignation within themselves, and said, Why was this waste of the ointment made? For it might have been sold for more than three hundred pence, and have been given to the poor. And they murmured against her. And Jesus said, Let her alone; why trouble ye her? she hath wrought a good work on me. For ye have the poor with you always, and whensoever ye will ye may do them good: but me ye have not always. She hath done what she could: she is come aforehand to anoint my body to the burying. Verily I say unto, Wheresoever this Gospel shall be preached throughout the whole world, this also that she hath done shall be spoken of for a memorial of her.
But although the four Evangelists record the anointing by a woman, there were two women and not one; one described by John, the sister of Lazarus; it was she who six days before the Passover anointed the feet of Jesus; another described by the other three Evangelists. Nay, if you examine, you will find three; for one is described by John, another by Luke, a third by the other two. For that one described by Luke is said to be a sinner and to have come to Jesus during the time of His preaching; but this other described by Matthew and Mark is said to have come at the time of the Passion, nor did she confess that she had been a sinner.