Cyrill of Alexandria
In the representation of the lamb and the sheep, the truth I have articulated is clearly shown. The unleavened bread signifies a life that is sincere and pure, as affirmed by Paul who writes to the sanctified, "Purge out the old leaven, that you may be new dough, since you are unleavened, for our Passover, Christ, was slain for us" (1 Corinthians 5:7). The absence of leaven in bread symbolizes the beauty and sweetness of the lives of the saints. We are called to present ourselves as pure, akin to unleavened bread, and as pleasing offerings, fully aware that our righteousness comes through the grace bestowed upon us by Christ, for we are redeemed "not from works of righteousness, which we would have done, but according to His great mercy" (Titus 3:5). Thus, it is wise to anoint the loaves with oil.