Exodus 29:30

30 seven days doth the priest in his stead (of his sons) put them on, when he goeth in unto the tent of meeting, to minister in the sanctuary.

Exodus 29:30 Meaning and Commentary

Exodus 29:30

And that son that is priest in his stead
The Targum of Jonathan is,

``who shall rise after him of his sons, not of the Levites;''

for the high priest was to be of the family of Aaron, a descendant of his; it was not enough that he was of the tribe of Levi, but he must descend from Aaron, either in the line of Eleazar or of Ithamar:

shall put them on seven days;
the next successor was to wear the garments seven days running:

when he cometh into the tabernacle of the congregation to minister in
the holy place;
to offer sacrifice in the court of the tabernacle, on the altar of burnt offering, and to offer incense on the altar of incense, and to trim the lamps of the candlestick, and to put the shewbread on the table.

Exodus 29:30 In-Context

28 and it hath been for Aaron and for his sons, by a statute age-during from the sons of Israel, for it [is] a heave-offering; and it is a heave offering from the sons of Israel, from the sacrifices of their peace-offerings -- their heave-offering to Jehovah.
29 `And the holy garments which are Aaron's, are for his sons after him, to be anointed in them, and to consecrate in them their hand;
30 seven days doth the priest in his stead (of his sons) put them on, when he goeth in unto the tent of meeting, to minister in the sanctuary.
31 `And the ram of the consecration thou dost take, and hast boiled its flesh in the holy place;
32 and Aaron hath eaten -- his sons also -- the flesh of the ram, and the bread which [is] in the basket, at the opening of the tent of meeting;
Young's Literal Translation is in the public domain.