The Lord's Supper I Corinthians (11:20) When you come together therefore into one place, this is not to eat the Lord's supper.
Paul in the above verse made a reference to the Passover by referring to it as the Lord's supper. If one looks at verse (11:23-26) they will clearly see that Paul is talking about the Passover. Let’s take a look at it…. 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: 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. 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. 26 For as often as ye eat this bread, and drink this cup, ye do shew the Lord's death till he come.
The following verse shows what Paul is talking about when he speaks of not eating the Lord's supper. Exodus (12:11) And thus shall ye eat it; with your lions girded, your shoes on your feet, and your staff in your hand; and ye shall eat it in haste: it is the Lord's passover.
What are you eating in the above verse? You are eating the Passover meal. Paul just substituted the word supper in place of passover. This is hardly enough for anyone to do away with God's commandment of observing the Passover and adopting a tradition of observing the Lord's supper. In addition verse (11:20) is the only time a reference is made using the term the Lord's supper in the bible.
Communion Here again we have people taking Paul's writing and coming up with their own doctrine. Some churches refer to the Passover as communion. They get this from the following verse.
I 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?
We see that this verse is talking about the Passover where Christ instructed His disciples to take of the cup and bread. The word communion simply means to share. Paul instead of saying is it not the sharing of the blood of Christ, substituted in the word communion. Communion is used in II Corinthians (6:14) where it states and what communion hath light with darkness? I pointed this out to show that communion and sharing have the same meaning. Again how does one not obey God's commandment concerning the Passover? yet observe the practice of having communion. You can not find in the bible where it says observe the Lord's communion.
The Last Supper The term the Last supper comes from the fact that Jesus stated to His disciples this will be the last time He will eat with them until the kingdom of God comes. But that does not take away from the fact that it was the Passover meal they were observing. Also, Jesus did eat after the passover: Luke 24 41 And while they yet believed not for joy, and wondered, he said unto them, Have ye here any meat? 42 And they gave him a piece of a broiled fish, and of an honeycomb. 43 And he took it, and did eat before them.