Behold, I stand at the door, and knock: if any man hear my voice, and open the door, I will come in to him, and will sup with him, and he with me.
 Because thou sayest, I am rich, and increased with goods, and have need of nothing; and knowest not that thou art wretched, and miserable, and poor, and blind, and naked:  I counsel thee to buy of me gold tried in the fire, that thou mayest be rich; and white raiment, that thou mayest be clothed, and that the shame of thy nakedness do not appear; and anoint thine eyes with eyesalve, that thou mayest see.  As many as I love, I rebuke and chasten: be zealous therefore, and repent.  Behold, I stand at the door, and knock: if any man hear my voice, and open the door, I will come in to him, and will sup with him, and he with me.
Communion is an exchange with Jesus.
 Verily, verily, I say unto you, He that believeth on me hath everlasting life.  I am that bread of life.  Your fathers did eat manna in the wilderness, and are dead.  This is the bread which cometh down from heaven, that a man may eat thereof, and not die.  I am the living bread which came down from heaven: if any man eat of this bread, he shall live for ever: and the bread that I will give is my flesh, which I will give for the life of the world.  The Jews therefore strove among themselves, saying, How can this man give us his flesh to eat?  Then Jesus said unto them, Verily, verily, I say unto you, Except ye eat the flesh of the Son of man, and drink his blood, ye have no life in you.  Whoso eateth my flesh, and drinketh my blood, hath eternal life; and I will raise him up at the last day.  For my flesh is meat indeed, and my blood is drink indeed.  He that eateth my flesh, and drinketh my blood, dwelleth in me, and I in him.  As the living Father hath sent me, and I live by the Father: so he that eateth me, even he shall live by me.  This is that bread which came down from heaven: not as your fathers did eat manna, and are dead: he that eateth of this bread shall live for ever.  These things said he in the synagogue, as he taught in Capernaum.  Many therefore of his disciples, when they had heard this , said, This is an hard saying; who can hear it?  When Jesus knew in himself that his disciples murmured at it, he said unto them, Doth this offend you?  Then said Jesus unto the twelve, Will ye also go away?  Then Simon Peter answered him, Lord, to whom shall we go? thou hast the words of eternal life.
What am I exchanging during communion? Or because of my lack of understanding have I not exchanged anything?
I’m giving me and receiving Him.
 Now the first day of the feast of unleavened bread the disciples came to Jesus, saying unto him, Where wilt thou that we prepare for thee to eat the passover?  And he said, Go into the city to such a man, and say unto him, The Master saith, My time is at hand; I will keep the passover at thy house with my disciples. And the disciples did as Jesus had appointed them; and they made ready the passover.  Now when the even was come, he sat down with the twelve.  And as they did eat, he said, Verily I say unto you, that one of you shall betray me.  And they were exceeding sorrowful, and began every one of them to say unto him, Lord, is it I?  And he answered and said, He that dippeth his hand with me in the dish, the same shall betray me.  The Son of man goeth as it is written of him: but woe unto that man by whom the Son of man is betrayed! it had been good for that man if he had not been born.  Then Judas, which betrayed him, answered and said, Master, is it I? He said unto him, Thou hast said.  And as they were eating, Jesus took bread, and blessed it , and brake it , and gave it to the disciples, and said, Take, eat; this is my body.  And he took the cup, and gave thanks, and gave it to them, saying, Drink ye all of it;  For this is my blood of the new testament, which is shed for many for the remission of sins.  But I say unto you, I will not drink henceforth of this fruit of the vine, until that day when I drink it new with you in my Father’s kingdom.
This cup connects you with every promise that God has ever made.
2 Corinthians 1:20…all the promises of God
4 cups of the cedar meal
Cup of Blessing
Cup of Redemption
Cup of Judgement/Affliction
Cup of the Kingdom/Consummation
1 Corinthians 10:16
 The cup of blessing which we bless, is it not the communion of the blood of Christ? The bread which we break, is it not the communion of the body of Christ?
This is the same cup that Melchizedek gave Abraham in Genesis 13. He received the cup of blessing at a meal.
God gave His life that we might receive life.
He died that I might live…that’s exchange.
Jesus drank the cup of Judgment/Affliction when he went to the cross. It is because his innocent blood was shed that we can have all the promises of God.