5 For Yahweh your God has chosen him out of all your tribes, to stand to minister in the name of Yahweh, him and his sons for ever.
*Minor differences ignored. Grouped by changes, with first version listed as example.
For the Lord thy God hath chosen him out of all thy tribes,.... That is, has chosen the tribe of Levi out of all the other tribes of Israel:
to stand to minister in the name of the Lord; the priests to minister to the Lord by offering sacrifices, and the Levites to minister to the priests in assisting them in their service; and both their ministry were in the name of the Lord, and for his glory, and done standing; for there was no sitting in the sanctuary (w); the priestly ministry was only performed standing (x), whatever was done sitting was rejected (y); see Hebrews 10:11,
him and his sons for ever; Levi and his posterity, or the posterity of the tribe of Levi, were chosen by the Lord to this service, to be employed in it as long as the ceremonial law continued, on which stood the Levitical priesthood; but both are now abolished by Christ, having their accomplishment in him, Hebrews 7:11.
(w) Maimon. in Misn. Zebachim, c. 2. sect. 1. (x) Bartenora in ib. (y) Misn. ib.
The reason for the right accorded to the priests was the choice of them for the office of standing "to minister in the name of Jehovah," sc., for all the tribes "In the name of Jehovah," not merely by the appointment, but also in the power of the Lord, as mediators of His grace. The words "he and his sons" point back quite to the Mosaic times, in which Aaron and his sons held the priest's office.
*More commentary available at chapter level.