So Paul was teaching believing Jews and believing Gentiles they were under the new covenant!
You Lose - again.
Paul is rebuking the Corinthians.
1 Corinthians 11:17 Now in this that I declare unto you I praise you not, that ye come together not for the better, but for the worse.
1 Corinthians 11:18 For first of all, when ye come together in the church, I hear that there be divisions among you; and I partly believe it.
1 Corinthians 11:19 For there must be also heresies among you, that they which are approved may be made manifest among you.
When they came together it was not to eat the Lord's supper yet here they were eating and drinking in front of the church of God who had nothing as those in the church of God had sold out, so Paul was rebuking them.
1 Corinthians 11:20 When ye come together therefore into one place, this is not to eat the Lord's supper.
1 Corinthians 11:21 For in eating every one taketh before other his own supper: and one is hungry, and another is drunken.
1 Corinthians 11:22 What? have ye not houses to eat and to drink in? or despise ye the church of God, and shame them that have not? What shall I say to you? shall I praise you in this? I praise you not.
In that rebuke, Paul is recalling the same night in which the Lord was betrayed.
1 Corinthians 11:23 For I have received of the Lord that which also I delivered unto you, That the Lord Jesus the same night in which he was betrayed took bread:
Paul is still speaking of that night which the Lord was betrayed. He is NOT instructing the Corinthians to partake of the Lord's supper in remembrance of Him.
1 Corinthians 11:24 And when he had given thanks, he brake it, and said, Take, eat: this is my body, which is broken for you: this do in remembrance of me.
1 Corinthians 11:25 After the same manner also he took the cup, when he had supped, saying, This cup is the new testament in my blood: this do ye, as oft as ye drink it, in remembrance of me.
Again, Paul is talking of the night the Lord was betrayed. He is not instructing the Corinthians to do it "til He come". If he was, he surely would have told them how to do it "worthily"
vs, "unworthily"(especially considering the penalty of doing it wrong)
1 Corinthians 11:26 For as often as ye eat this bread, and drink this cup, ye do shew the Lord's death till he come.
Penalty:
1 Corinthians 11:27 Wherefore whosoever shall eat this bread, and drink this cup of the Lord, unworthily, shall be guilty of the body and blood of the Lord.
1 Corinthians 11:29 For he that eateth and drinketh unworthily, eateth and drinketh damnation to himself, not discerning the Lord's body.
1 Corinthians 11:30 For this cause many are weak and sickly among you, and many sleep.
As to the NC: Paul never preached the NC. That is future and who it is promised to is not the church, which is His (Christ's) Body. You don't have to like it, but that's the way it will be (Jeremiah 31:31-34 KJV, Hebrews 8:8-12 KJV). Our hope is not in the new covenant which is 1. not to us and 2. steeped in the letter of the law
Paul was an able minister of the spirit of the new testament/the ministration of the Spirit/ the ministration of righteousness which is the righteousness of God
without the law and that is revealed in the gospel of Christ, even the righteousness of God which is by faith of Jesus Christ unto all and upon all them that believe.
2 Corinthians 3:7 But if the ministration of death, written and engraven in stones, was glorious, so that the children of Israel could not stedfastly behold the face of Moses for the glory of his countenance; which glory was to be done away:
2 Corinthians 3:8 How shall not the ministration of the spirit be rather glorious?
2 Corinthians 3:9 For if the ministration of condemnation be glory, much more doth the ministration of righteousness exceed in glory.
2 Corinthians 3:10 For even that which was made glorious had no glory in this respect, by reason of the glory that excelleth.
2 Corinthians 3:11 For if that which is done away was glorious, much more that which remaineth is glorious.
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Romans 1:16 For I am not ashamed of the gospel of Christ: for it is the power of God unto salvation to every one that believeth; to the Jew first, and also to the Greek.
Romans 1:17 For therein is the righteousness of God revealed from faith to faith: as it is written, The just shall live by faith.
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Romans 3:21 But now the righteousness of God without the law is manifested, being witnessed by the law and the prophets;
Romans 3:22 Even the righteousness of God which is by faith of Jesus Christ unto all and upon all them that believe: for there is no difference:
Have you trusted the Lord believing that gospel that Paul declared in 1 Corinthians 15:1-4 KJV as the means by which one can be saved?