John 11:2
Mary was the one who poured perfume on the Lord and wiped his feet with her hair; and Lazarus was the one who was sick — John identifies Mary by a deed not yet narrated in his Gospel (the anointing will be described in 12:3), assuming reader familiarity or relying on pre-Gospel tradition. This forward reference creates narrative anticipation and suggests that the anointing and the raising of Lazarus are connected events in John's theological scheme.