Jesus took the minds focused upon bread and manna and brought them to the Life He brings, spiritual life. This Life is for the spirit of man, not his belly. The Feast of weeks is performed with :EAVENED bread, two loaves. The Leaven of God is The Holy Spirit.
Jesus said as much to these who were questioning Him following the miracle of the bread feeding the thousands. And shortly after that lesson tot he masses, He explained the contrast leaven of the Pharisees to his disciples. They stumbled at first, focusing upon bread which they had forgotten to bring along.
It is by faith that This Life from God, The Leaven of God's Spirit, literally GOD'S LIFE as the indwelling Holy Spirit, brings life to the dead spirit of man. When Jesus instituted the remembrance of what He was about to do for us all, they were sitting at Passover, with unleavened bread, in remembrance of so much spiritual reality from their nation's past!
It was the blood of the lamb slain for their deliverance from the death angel they ate the Passover meal over. The blood of the lamb slain was spread upon the doorpost and lintel for their atonement.
God had commanded all the way back in Genesis 6 not to eat the blood, for the life is in the blood, and the blood would be for the atonement. But the Jewish High Priest entering once each year had to perform this ritual of atonement in the Temple so that BY FAITH the Israelites would have atonement for their sins against the law of sin and death.
Jesus fulfilled that law of sin and death and has entered the Holy of Holies ONCE FOR ALL FOREVER. Taking the Eucharist is a remembrance of this once fore all forever, not a repetition of it. Jesus ended the repetition with His perfect Precious blood upon the Mercy Seat, Once For All, Forever.
pingalingaling Is the blindness due to not knowing the Plan of Salvation, The Gospel and what happened at Pentecost and in the House of Cornelius?
As a Catholic, I even agree that "Jesus fulfilled that law of sin and death and has entered the Holy of Holies ONCE FOR ALL FOREVER. Taking the Eucharist is a remembrance of this once fore all forever, not a repetition of it."
We don't see the Eucharist as a "repetition" of Christ's once-and-for-all, forever sacrifice, but as a "participation" in it. It is the One self-same sacrifice, made present to us, offered by the One priest, Jesus Christ Our Lord.
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He fulfilled the first three appointed times.
There are four more times to be fulfilled.
When the last is fulfilled, the Earth and heavens will be gone, there having been found no place for them.
(revelation 20:11 “And I saw a great white throne, and him that sat on it, from whose face the earth and the heaven fled away; and there was found no place for them.)