1 Chronicles 9:22

These were reckoned in their villages Where their usual residence was, and whence they came to Jerusalem in their courses. Whom David and Samuel did ordain In the times of the judges there was much disorder both in the Jewish state and church, and the Levites came to the tabernacle promiscuously, and as their inclinations or occasions brought them. But Samuel, observing they were greatly increased, began to think of establishing order in their ministration. And these intentions of his, probably, were communicated to David, who, after his own peaceable settlement in his throne, revived and perfected Samuel's design, and took care to put it in execution.