'Courses' in the Bible
From heaven fought the stars, From their courses they fought against Sisera.
And he sent them to Lebanon, ten thousand a month by courses; a month they were in Lebanon, and two months at home; and Adoniram was over the men subject to taskwork.
And he built the inner court with three courses of hewn stone, and a course of cedar beams.
And the great court round about had three courses of hewn stone, and a course of cedar beams; like as the inner court of the house of Jehovah, and the porch of the house.
And David divided them into courses according to the sons of Levi: Gershon, Kohath, and Merari.
And the courses of the sons of Aaron were these . The sons of Aaron: Nadab and Abihu, Eleazar and Ithamar.
For the courses of the doorkeepers: of the Korahites, Meshelemiah the son of Kore, of the sons of Asaph.
Of these were the courses of the doorkeepers, even of the chief men, having offices like their brethren, to minister in the house of Jehovah.
These were the courses of the doorkeepers; of the sons of the Korahites, and of the sons of Merari.
Now the children of Israel after their number, to wit , the heads of fathers houses and the captains of thousands and of hundreds, and their officers that served the king, in any matter of the courses which came in and went out month by month throughout all the months of the year-of every course were twenty and four thousand.
also for the courses of the priests and the Levites, and for all the work of the service of the house of Jehovah, and for all the vessels of service in the house of Jehovah;
And, behold, there are the courses of the priests and the Levites, for all the service of the house of God: and there shall be with thee in all manner of work every willing man that hath skill, for any manner of service: also the captains and all the people will be wholly at thy commandment.
And it came to pass, when the priests were come out of the holy place, (for all the priests that were present had sanctified themselves, and did not keep their courses;
And he appointed, according to the ordinance of David his father, the courses of the priests to their service, and the Levites to their offices, to praise, and to minister before the priests, as the duty of every day required; the doorkeepers also by their courses at every gate: for so had David the man of God commanded.
So the Levites and all Judah did according to all that Jehoiada the priest commanded: and they took every man his men, those that were to come in on the sabbath; with those that were to go out on the sabbath; for Jehoiada the priest dismissed not the courses.
And Hezekiah appointed the courses of the priests and the Levites after their courses, every man according to his service, both the priests and the Levites, for burnt-offerings and for peace-offerings, to minister, and to give thanks, and to praise in the gates of the camp of Jehovah.
And under him were Eden, and Miniamin, and Jeshua, and Shemaiah, Amariah, and Shecaniah, in the cities of the priests, in their office of trust, to give to their brethren by courses, as well to the great as to the small:
besides them that were reckoned by genealogy of males, from three years old and upward, even every one that entered into the house of Jehovah, as the duty of every day required, for their service in their offices according to their courses;
and them that were reckoned by genealogy of the priests by their fathers houses, and the Levites from twenty years old and upward, in their offices by their courses;
And prepare yourselves after your fathers houses by your courses, according to the writing of David king of Israel, and according to the writing of Solomon his son.
So the service was prepared, and the priests stood in their place, and the Levites by their courses, according to the king's commandment.
with three courses of great stones, and a course of new timber: and let the expenses be given out of the king's house.
And they set the priests in their divisions, and the Levites in their courses, for the service of God, which is at Jerusalem; as it is written in the book of Moses.
And of the Levites, certain courses in Judah were joined to Benjamin.