וְעַל־הַצֹּ֖אן יָזִ֣יז הַֽהַגְרִ֑י כָּל־אֵ֙לֶּה֙ שָׂרֵ֣י הָרְכ֔וּשׁ אֲשֶׁ֖ר לַמֶּ֥לֶךְ דָּוִֽיד׃
und über den Herden war Jaziz der Hagrit. All dies waren die Herrscher der Substanz, die König David war's.
Rashi on I Chronicles
And over the flocks was Jaziz the Hagarite Since the Hagarites were tent dwellers in the field, he appointed him over his flocks.