מִן־בְּנֵי־פֶ֗רֶץ הָרֹ֛אשׁ לְכָל־שָׂרֵ֥י הַצְּבָא֖וֹת לַחֹ֥דֶשׁ הָרִאשֽׁוֹן׃
Siya ay mula sa mga anak ni Perez, ang pinuno ng lahat ng mga pinuno ng mga hukbo para sa unang buwan.
Rashi
the chief of all the leaders of the hosts Jashabeam was [one] of the sons of Perez, and he was the chief of all the twelve leaders, and because he was [one] of the sons of Perez, David appointed him chief.