Origen
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.
(in Matt. 35.) For they were grieved at the waste of the ointment, which might be sold for a large sum and given to the poor. This however ought not to have been, for it was right that it should be poured over the head of Christ, with a holy and fitting stream; wherefore it goes on, She hath wrought a good work on me. And so effectual is the praise of this good work, that it ought to excite all of us to fill the head of the Lord with sweet smelling and rich offerings, that of us it may be said that we have done a good work over the head of the Lord. For we always have with us, as long as we remain in this life, the poor who have need of the care of those who have made progress in the word, and are enriched in the wisdom of God; they are not however able always day and night to have with them the Son of God, that is, the Word and Wisdom of God. For it goes on: For ye have the poor always with you, and whensoever ye will ye may do them good; but me ye have not always.