“Both to the genealogy of the priests by the house of their fathers, and the Levites from twenty years old and upward, in their charges by their courses;”
King James Version (KJV)
31:15 And next, &c. - These were intrusted with receiving and distributing the several portions belonging to the priests who abode in their several cities, whilst their brethren came up to Jerusalem.
31:18 For, &c. - This is alleged as a reason why their wives and children were provided for out of the holy things, because they sequestered themselves from worldly affairs, by which they might otherwise have provided for their families.