C. F. Keil and Franz Delitzsch on 1 Chronicles 9:20

1Ch 9:20

Phinehas was prince over them, not as high priest, but during the high-priesthood of his father Eleazar, i.e., in the time of Joshua, just as Eleazar, under the high-priesthood of Aaron in the time of Moses, had the oversight of the keepers of the holy place, as prince of the princes of Levi (Num 3:32). The words עמּו יהוה do not contain a historical remark, “Jahve was with him,” for then the conjunction w would stand before it, as in 1Ch 11:9; they are a blessing - “Jahve be with him” - in reference, probably, to the covenant of peace entered into with him and his descendants by Jahve (Num 25:11-13).