1 Corinthians 8:7-9

However not all men have this knowledge; but some, being accustomed to the idol until now, eat food as if it were sacrificed to an idol; and their conscience being weak is defiled. But food will not commend us to God; we are neither the worse if we do not eat, nor the better if we do eat. But take care that this liberty of yours does not somehow become a stumbling block to the weak.