1 Corinthians 11:20-21
So, when you people assemble together [Note: This was a church meeting at which they also shared a common meal prior to the Lord's Supper], it is not possible to eat the Lord's Supper [properly].
1 Corinthians 10:31
So, whether you people eat or drink, or whatever you do, do it all to honor God.
1 Corinthians 11:26-29
For whenever you eat this bread and drink from this cup, you are proclaiming the Lord's death until He comes [again].
Colossians 3:17
And whatever you do, whether in [your] words or actions, do everything in the name [i.e., by the authority] of Christ, giving thanks to God the Father through Him.