Luke 1:5

There was in the days of Herod, king of Judaea, a certain priest, Zacharias by name, of the course of Abija; and he had a wife of the daughters of Aaron, and her name was Elizabeth.

Luke 1:8

Now it came to pass, that, while he was doing priestly service in the order of his course before God,

Acts 13:22

and, having removed him, He raised up for them David to be their king; to whom bearing testimony, He said, 'I found David the son of Jesse, a man after My heart, who will do all My will.'

Acts 13:36

For David, indeed, having served his own generation according to the will of God, fell asleep, and was added to his fathers, and saw corruption;

Treasury of Scripture Knowledge

Summary

And he appointed, according to the order of David his father, the courses of the priests to their service, and the Levites to their charges, to praise and minister before the priests, as the duty of every day required: the porters also by their courses at every gate: for so had David the man of God commanded.

The courses

So had david the man of god commanded

Bible References

The courses

Luke 1:5
There was in the days of Herod, king of Judaea, a certain priest, Zacharias by name, of the course of Abija; and he had a wife of the daughters of Aaron, and her name was Elizabeth.

So had david the man of god commanded

Acts 13:22
and, having removed him, He raised up for them David to be their king; to whom bearing testimony, He said, 'I found David the son of Jesse, a man after My heart, who will do all My will.'