1 Corinthians 8:10
For if someone with a weak conscience sees you, who have [correct] knowledge [in this matter], eating in an idol's temple, will he not be encouraged to eat food sacrificed to idols?
1 Corinthians 10:7
[So], do not worship idols as some of them did, as it is written [Ex. 32:6], "The people sat down to feast and drink, then got up and played." [Note: This refers to the Israelites engaging in an orgy of dancing and sex. See Ex. 32:17-19].
1 Corinthians 10:21
You cannot drink [both] the cup of the Lord and the cup of evil spirits [i.e., and still be acceptable to God]. You cannot share in [both] the Lord's table and the table of evil spirits [and still be acceptable to God].