Exodus 29:28

28 and they shall turn into the part of Aaron, and of his sons, by everlasting right, of the sons of Israel; for they be the first things, and the beginning/s of the peaceable sacrifices of them, which they offer to the Lord. (and they shall belong to Aaron, and to his sons, by an everlasting law, as a gift from the Israelites; for they be the first things, and the beginnings of their peace offerings, which they offer to the Lord.)

Exodus 29:28 Meaning and Commentary

Exodus 29:28

And it shall be Aaron's and his sons by a statute for ever
from the children of Israel
That is, the shoulder, which seems particularly meant, though the breast also was theirs, which was at this time given to Moses, he being priest; and this was an everlasting statute and ordinance in all generations, as long as the priesthood of Aaron lasted, until the Messiah should come and put an end to it: and this the children of Israel were always to allow the priests; the shoulder, because Aaron bore their names before the Lord upon his shoulders, for a memorial; and the breast for a like reason, because he bore their names in the breastplate of judgment upon his heart, and their judgment also before the Lord continually, ( Exodus 28:12 Exodus 28:29 Exodus 28:30 ) ,

for it is an heave offering:
it is lifted up to the Lord, and therefore is given to his priest:

and it shall be an heave offering from the children of Israel of the
sacrifice of their peace offerings, [even] their heave offering unto
the Lord:
it being heaved up and given to the priest, it was reckoned an offering to the Lord, and was accepted by him as a peace offering; and it was an emblem of the lifting up of their hearts to God, and of the going up of the affections and desires of their souls to him, and of their serving and worshipping him in spirit and in truth, who is a spirit, and was their Father in heaven, to whom their eyes, hearts, and hands, were to be lifted up.

Exodus 29:28 In-Context

26 Also thou shalt take the breast of the ram, by which Aaron was hallowed, and thou shalt hallow it, raised [up] before the Lord; and it shall turn into thy part. (And thou shalt take the ram's breast, with which Aaron was consecrated, and thou shalt hallow it, and raise it up before the Lord; and it shall be thy portion.)

27 And thou shalt hallow also the breast (made) sacred, and the shoulder which thou separatedest from the ram, by which Aaron was hallowed, and his sons; (And thou shalt also hallow the consecrated breast, and the shoulder which thou separatedest from the ram, with which Aaron and his sons were consecrated;)

28 and they shall turn into the part of Aaron, and of his sons, by everlasting right, of the sons of Israel; for they be the first things, and the beginning/s of the peaceable sacrifices of them, which they offer to the Lord. (and they shall belong to Aaron, and to his sons, by an everlasting law, as a gift from the Israelites; for they be the first things, and the beginnings of their peace offerings, which they offer to the Lord.)

29 Forsooth the sons of Aaron shall have after him the holy cloth(es), which Aaron shall use, that they be anointed therein, and that their hands be (made) sacred. (And the holy clothes which Aaron shall wear, shall belong to his sons after him, and they shall be anointed, and consecrated, in them.)

30 That of his sons, that shall be made bishop for him, shall use that cloak (for) seven days, and which son shall enter into the tabernacle of witnessing, that he minister in the saintuary. (He of his sons, who shall be made the High Priest after him, and shall enter into the Tabernacle of the Witnessing to minister in the sanctuary, shall wear those clothes for seven days.)