1 Corinthians 8
1Now concerning food offered to idols: we know that “all of us possess knowledge.” This “knowledge” puffs up, but love builds up. 2 If anyone imagines that he knows something, he does not yet know as he ought to know. 3But if anyone loves God, he is known by God.
4Therefore, as to the eating of food offered to idols, we know that “an idol has no real existence,” and that “there is no God but one.” 5For although there may be so-called gods in heaven or on earth—as indeed there are many “gods” and many “lords”— 6yet for us there is one God, the Father, from whom are all things and for whom we exist, and one Lord, Jesus Christ, through whom are all things and through whom we exist.
7However, not all possess this knowledge. But some, through former association with idols, eat food as really offered to an idol, and their conscience, being weak, is defiled. 8 Food will not commend us to God. We are no worse off if we do not eat, and no better off if we do. 9But take care that this right of yours does not somehow become a stumbling block to the weak. 10For if anyone sees you who have knowledge eating in an idol’s temple, will he not be encouraged, if his conscience is weak, to eat food offered to idols? 11And so by your knowledge this weak person is destroyed, the brother for whom Christ died. 12Thus, sinning against your brothers and wounding their conscience when it is weak, you sin against Christ. 13Therefore, if food makes my brother stumble, I will never eat meat, lest I make my brother stumble.
Galatians 2:6,9
6 But of these who seemed to be somewhat, (whatsoever they were, it maketh no matter to me: God accepteth no man's person:) for they who seemed to be somewhat in conference added nothing to me:
9 And when James, Cephas, and John, who seemed to be pillars, perceived the grace that was given unto me, they gave to me and Barnabas the right hands of fellowship; that we should go unto the heathen, and they unto the circumcision.
10 Only they would that we should remember the poor; the same which I also was forward to do.
Paul must have forgotten about this part:
20 But that we write unto them, that they abstain from pollutions of idols, and from fornication, and from things strangled, and from blood.