John Gills Exposition of the Bible Commentary - Leviticus 7:13
Besides the cakes ,.... The unleavened cakes, and the unleavened wafers, and the fried cakes; or with these, as Aben Ezra and Abendana interpret it: he shall offer for his offering leavened bread, with the sacrifice of thanksgiving of his peace offerings ; not that this was offered upon the altar, for all leaven was forbidden there, Leviticus 2:11 but it was given to the priest, that he might have change of bread, and such as was agreeable to him, to eat with the flesh of the peace... read more
Matthew Henry's Complete Commentary - Leviticus 7:11-34
All this relates to the peace-offerings: it is the repetition and explication of what we had before, with various additions. I. The nature and intention of the peace-offerings are here more distinctly opened. They were offered either, 1. In thankfulness for some special mercy received, such as recovery from sickness, preservation in a journey, deliverance at sea, redemption out of captivity, all which are specified in Ps. 107:1-43, and for them men are called upon to offer the sacrifice of... read more