In Luke 1, the Jewish priest Zacharias goes into the Temple to offer at the altar of incense. There an angel announces to him that he and his wife will have a son who "shall be great before the Lord." Accordingly, portraits of Zacharias normally have him carrying a censer, as at right. They also give him gray hair and beard, because his response to the angel is a protest that "I am an old man, and my wife is advanced in years."
Some images also give Zacharias the horned headpiece that signifies the office of high priest, although that is not what Luke says he was.
For narrative images of the angel's visitation and the saint's place in the birth and naming of his son, see the page for John the Baptist
Prepared in 2017 by Richard Stracke, Emeritus Professor of English, Augusta University