1 Corinthians 10:16, 21
1 Corinthians 10:16 NCV
We give thanks for the cup of blessing, which is a sharing in the blood of Christ. And the bread that we break is a sharing in the body of Christ.
1 Corinthians 10:21 NCV
You cannot drink the cup of the Lord and the cup of demons also. You cannot share in the Lord’s table and the table of demons.