Luke 2:36–38 There was also a prophet, Anna, the daughter of Penuel, of the tribe of Asher. She was very old; she had lived with her husband seven years after her marriage, and then was a widow until she was eighty-four.[*] She never left the temple but worshiped night and day, fasting and praying. Coming up to them at that very moment, she gave thanks to God and spoke about the child to all who were looking forward to the redemption of Jerusalem.
Luke describes Anna as "very old." Many Bibles and older commentaries state that she was 84 years old.
The Greek text states that "she was a widow of eighty four years". The passage is ambiguous: it could mean that she was 84 years old, or that she had been a widow for 84 years, Some scholars consider the latter to be the more likely option. On this option, she could not have married younger than about age 14, and so she would have been at least 14 + 7 + 84 = 105 years old.
Also her figure is drawn in the icons of the Presentation of Christ, together with the Holy Child and the Virgin Mary, Joseph and Simeon the God-Receiver. Orthodox tradition considers that Christ met his people, Israel, in the persons of those two, Simeon and Anna.
^UBS Greek NT καὶ αὐτὴ χήρα ὡς ἐτῶν ὀγδοηκοντατεσσάρων
^Twelve Extraordinary Women: How God Shaped Women of the Bible, and ... – Page 136 John MacArthur – 2008 "The Greek text is ambiguous as to her exact age. (“This woman was a widow of about eighty-four years.”) It might mean literally that she had been a widow for eighty-four years. Assuming she married very young (remember, thirteen was a ..."