John Lightfoot on John 12:7

[Against the day of my burying hath she kept this.] Baronius proves from this place that this Mary was Mary Magdalene, because she is named amongst those that anointed Christ for his interment; and Christ saith in this place, that she reserved some of this ointment for this use: which I have had occasion to mention elsewhere. If this exposition do not take, then add this clause, "Let her alone": for this may be an argument and sign that she hath not done this vainly, luxuriously, or spent so costly an ointment upon me upon any delicacy; because she hath reserved it for this time, wherein I am so near my grave and funeral, and poured it not on me before.