Luke 1:5, 8-9

There was in the days of Herod, the king of Judæa, a certain priest named Zacharias, of the course of Abia: and his wife was of the daughters of Aaron, and her name was Elisabeth.

And it came to pass, that while he executed the priest's office before God in the order of his course, according to the custom of the priest's office, his lot was to burn incense when he went into the temple of the Lord.