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The feeding of the five thousand is one of the two miracles (the other being the Resurrection of Jesus Christ) recorded in all the four Gospels. What is so significant about this miracle? That the miracle was performed just before Passover is telling.
The Celebration of the Passover is one of most important celebration in the calendar of the Jews. In the Passover, unleavened bread (to signify the haste in leaving Egypt) and the roasted sacrificial young lamb (the blood that offered protection from the angel of death), were eaten to remember the LORD spared the lives of the Israelites as the angel of death passed over their houses.
In this special Passover, Jesus performed the feeding miracle to allude to a greater miracle that was to come very shortly. The bread that was fed to the multitude will satisfy for that moment but for those who understood the meaning of the miracle and believe, the Bread of Life will satisfy forever (John 6:35). Although there was no lamb then, Paul declared Jesus to be Passover Lamb, sacrificed for us (1 Corin 5:7).
So, one way that God refreshes our faith is to see anew what God has done for us. In this instance, when we come to the Bread of Life, we will always be filled. We escape death because we believe the Passover Lamb’s blood is over our lives.