First Letter to the Corinthians

yet to us there is one God, the Father, of whom are all things, and we for him; and one Lord, Jesus Christ, through whom are all things, and we live through him.

However, that knowledge isn't in all men. But some, with consciousness of the idol until now, eat as of a thing sacrificed to an idol, and their conscience, being weak, is defiled.

But food will not commend us to God. For neither, if we don't eat, are we the worse; nor, if we eat, are we the better.

But be careful that by no means does this liberty of yours become a stumbling block to the weak.

For if a man sees you who have knowledge sitting in an idol's temple, won't his conscience, if he is weak, be emboldened to eat things sacrificed to idols?

And through your knowledge, he who is weak perishes, the brother for whose sake Christ died.

Thus, sinning against the brothers, and wounding their conscience when it is weak, you sin against Christ.