29 Shitrai the Sharonite was in charge of herds grazing in Sharon and Shaphat son of Adlai was in charge of herds in the valley. 30 Obil the Ismaelite was in charge of the camels, Jehdeiah the Meronothite was in charge of the donkeys, 31 and Jaziz the Hagrite was in charge of the flocks. These were the ones responsible for taking care of King David's property.
Matthew Henry's Commentary on 1 Chronicles 27:29-31
Commentary on 1 Chronicles 27:16-34
(Read 1 Chronicles 27:16-34)
The officers of the court, or the rulers of the king's substance, had the oversight and charge of the king's tillage, his vineyards, his herds, his flocks, which formed the wealth of eastern kings. Much of the wisdom of princes is seen in the choice of their ministry, and common persons show it in the choice of their advisers. David, though he had all these about him, preferred the word of God before them all. Thy testimonies are my delight and my counsellors.