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 11:27 KJV
Love demands that we esteem one another more highly than ourselves.
When a group of believers gathers for a shared meal (a potluck) it is to be entered into with the same heart as that which the current Church calls Communion or the Eucharist.
The first Communion took place during a meal and all were included, even Judas Escariot.
When Communion is served it is served to all with the love of God that is shed abroad in our hearts. No one is more and no one is less. Strife and division find no place.
So it should be in our love feasts. All are accepted and all are included.
When ye come together therefore into one place, this is not to eat the Lord’s supper. For in eating every one taketh before other his own supper: and one is hungry, and another is drunken. 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. 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. But let a man examine himself, and so let him eat of that bread, and drink of that cup. For he that eateth and drinketh unworthily, eateth and drinketh damnation to himself, not discerning the Lord’s body. Wherefore, my brethren, when ye come together to eat, tarry one for another.
1 Corinthians 11:20-22, 27-29, 33 KJV
We eat and drink unworthily when we don’t esteem all believers.
You might want to read the whole chapter of 1 Corinthians 11 to see the revelation expressed here.