Most Christians have some kind of an idea that the animal sacrifices of the Old Testament are symbols of Jesus. They know, for instance, that the Passover lamb—the lamb without blemish—is a picture of what Jesus would be. Many know about the scapegoat on the Day of Atonement which is taught in detail in Hebrews 9-11. The high priest actually put his hands on two goats and symbolically placed sin upon their heads. The goats would be paraded through the streets where people would spit on them, kick them, throw rocks at them, beat them with sticks and curse them for their sin. Then they were escorted outside the city where one would be slaughtered and the other taken to a precipice. It was a symbol of what would happen to Jesus: God put all our sin on Him, He would be paraded through the streets of Jerusalem, then taken outside the city and executed. We have some idea that the blood sacrifices of animals are symbols of Jesus; however, we don't often think this way in regard to the grain offering.
The grain offering is called in Hebrew "matzoth"—unleavened. It is striped and pierced. The Talmud decrees that the unleavened bread used at Passover has to be so, and the rabbis tell us that this corresponds to the flesh of the Passover lamb. This is exactly what Jesus speaks of in John 6 and is a picture of His body. The bread was striped (“…for by His wounds [stripes] you were healed." 1 Peter 2:24) and pierced ("But He was pierced through for our transgressions..." Isaiah 53:5). The grain offering is a symbol of the sacrifice of Jesus for our sins. Because sin contaminates every aspect of our being – our flesh, our soul, and our spirit – Christ had to suffer in each His body, soul, and spirit to be the perfect, whole sacrifice for our sin.