Matthew
Matthew 26:7ESV·traditional attribution

a woman came up to him with an alabaster flask of very expensive ointment, and she poured it on his head as he reclined at table.

John Gill Reformed Baptist @doctorgill

There came unto him a woman,.... By some thought to be the same that is spoken of in Luk 7:37, and by most, to be Mary, the sister of Lazarus, Joh 12:3, which may be true; for it is possible that one and the same woman, might perform a like action at different times; for to neither of the above, at the same time, will...

Albert Barnes Presbyterian @notesbybarnes

Verse 7. There came unto him a woman. This woman was Mary, the sister of Lazarus and Martha, . Having an alabaster box. The alabaster is a species of marble, distinguished for being light, and of a beautiful white colour, almost transparent. It was much used by the ancients for the purpose of preserving various kinds of ointment in. Of very precious ointment.

Geneva Bible Notes Reformed @genevanotes

There came unto him a woman having an alabaster box of very precious ointment, and poured it on his head, as he sat [at meat]. (b) For these things were done before Christ came to Jerusalem: and yet some think that the evangelists have two differing accounts.