There was in the days of Herod, the king of Judea, a certain priest named Zacharias, of the priestly division of Abijah. He had a wife of the daughters of Aaron, and her name was Elizabeth.
"Moses, our master, divided the priests into eight courses, four from Eleazar, and four from Ithamar, and so they were until Samuel the prophet; and in the days of Samuel, he and David, the king, divided them into twenty four courses; and over every course one head was appointed, and they went up to Jerusalem to the service of the course every week; and from sabbath to sabbath they changed; one course went out, and another came in, till they finished, and returned again.''