פירוש על ויקרא 7:13

יקריב קרבנו על זבח [WITH THE CAKES OF LEAVENED BREAD] HE SHALL OFFER HIS OFFERING WITH THE SACRIFICE — The word קרבנו is redundant (it would have sufficed to say על חלת לחם חמץ יקריבנו), it intimates that the bread is not holy as such (קדוש קדושת הגוף), that it should become invalid by being carried forth from the forecourt, or by the touch of טבול יום (see v. 7) and so as to become incapable of going forth from its holy status to that of non-holy (ordinary) food (as is the case with a sacrifice that is קדוש קדושת הגוף), before the sacrifice is slaughtered (Menachot 78b)

That the bread is not holy. Otherwise, why does it need to say: “He shall bring his offering, along with his peaceoffering of thanksgiving”? It is written above (v. 12): “He shall bring along with his thanksgiving offering matzoh loaves...”! Perforce this verse comes for to be elucidated: “[This tells us] that the bread is not holy, etc.” Accordingly, the phrase, “Loaves of leavened bread,” is expounded with the preceding verse and the phrase following: With the preceding — “matzoh loaves mixed with oil ... and loaves of saturated fine flour mixed with oil, with loaves of leavened bread, etc.” and with the phrase following — “With loaves of leavened bread he shall bring his offering, along with his peace-offering of thanksgiving.”