Thou shalt take the breast. — It was the general law that in “wave offerings” the breast should be the officiating priest’s (Leviticus 7:29-31); hence, on this occasion, it was assigned to Moses.
Related Commentaries of Exodus 29:26
Exodus 29:26
26 And thou shalt take the breast of the ram of Aaron's consecration, and wave it for a wave offering before the LORD: and it shall be thy part.