“Besides the cakes, hee shall offer for his offring leauened bread, with the sacrifice of thankesgiuing of his peace offerings.”
1611 King James Version (KJV)
7:13 Leavened bread - Because this was a sacrifice of another kind than those in which leaven was forbidden, this being a sacrifice of thanksgiving for God's blessings, among which leavened bread was one. Leaven indeed was universally forbidden, #Lev 2:11|. But that prohibition concerned only things offered and burnt upon the altar, which this bread was not.