After they had stopped speaking, James answered, saying, "Brethren, listen to me. Simeon has related how God first concerned Himself about taking from among the Gentiles a people for His name. "With this the words of the Prophets agree, just as it is written, `AFTER THESE THINGS I will return, AND I WILL REBUILD THE TABERNACLE OF DAVID WHICH HAS FALLEN, AND I WILL REBUILD ITS RUINS, AND I WILL RESTORE IT, SO THAT THE REST OF MANKIND MAY SEEK THE LORD, AND ALL THE GENTILES WHO ARE CALLED BY MY NAME,' SAYS THE LORD, WHO MAKES THESE THINGS KNOWN FROM LONG AGO.' Therefore it is my judgment that we do not trouble those who are turning to God from among the Gentiles, but that we write to them that they abstain from things contaminated by idols and from fornication and from what is strangled and from blood. "For Moses from ancient generations has in every city those who preach him, since he is read in the synagogues every Sabbath."
(Acts 15:13-21, NASB)
Accept those whose faith is weak, without quarreling over disputable matters. One person's faith allows them to eat everything, but another person, whose faith is weak, eats only vegetables. The one who eats everything must not treat with contempt the one who does not, and the one who does not eat everything must not judge the one who does, for God has accepted that person. Who are you to judge someone else's servant? To their own master they stand or fall. And they will stand, for the Lord is able to make them stand.
Some consider one day more sacred than another; others consider every day alike. Everyone should be fully convinced in their own mind. Those who regard one day as special do so to the Lord. Those who eat meat do so to the Lord, for they give thanks to God; and those who abstain do so to the Lord and give thanks to God. For we do not live to ourselves alone and we do not die to ourselves alone. If we live, we live to the Lord; and if we die, we die to the Lord. So, whether we live or die, we belong to the Lord. For this very reason, Christ died and returned to life so that he might be the Lord of both the dead and the living.
You, then, why do you judge your brother or sister? Or why do you treat your brother or sister with contempt? For we will all stand before God's judgment seat. It is written:
"'As surely as I live,' says the Lord,
'every knee will bow before me;
every tongue will confess to God.'"
So then, we will all give an account of ourselves to God.
Therefore let us stop passing judgment on one another. Instead, make up your mind not to put any stumbling block or obstacle in the way of a brother or sister. I am convinced, being fully persuaded in the Lord Jesus, that nothing is unclean in itself. But if anyone regards something as unclean, then for that person it is unclean. If your brother or sister is distressed because of what you eat, you are no longer acting in love. Do not by your eating destroy your brother or sister for whom Christ died. Therefore do not let what you know is good be spoken of as evil. For the kingdom of God is not a matter of eating and drinking, but of righteousness, peace and joy in the Holy Spirit, because anyone who serves Christ in this way is pleasing to God and receives human approval.
Let us therefore make every effort to do what leads to peace and to mutual edification. Do not destroy the work of God for the sake of food. All food is clean, but it is wrong for a person to eat anything that causes someone else to stumble. It is better not to eat meat or drink wine or to do anything else that will cause your brother or sister to fall.
So whatever you believe about these things keep between yourself and God. Blessed are those who do not condemn themselves by what they approve. But those who have doubts are condemned if they eat, because their eating is not from faith; and everything that does not come from faith is sin.
(Romans 14, TNIV)
You say, "I am allowed to do anything" – but not everything is helpful. You say, "I am allowed to do anything" – but not everything is beneficial. Don't think only of your own good. Think of other Christians and what is best for them. Here's what you should do. You may eat any meat that is sold in the marketplace. Don't ask whether or not it was offered to idols, and then your conscience won't be bothered. For "the earth is the Lord's, and everything in it." If someone who isn't a Christian asks you home for dinner, go ahead; accept the invitation if you want to. Eat whatever is offered to you and don't ask any questions about it. Your conscience should not be bothered by this. But suppose someone warns you that this meat has been offered to an idol. Don't eat it, out of consideration for the conscience of the one who told you. It might not be a matter of conscience for you, but it is for the other person. Now, why should my freedom be limited by what someone else thinks? If I can thank God for the food and enjoy it, why should I be condemned for eating it? Whatever you eat or drink or whatever you do, you must do all for the glory of God. Don't give offense to Jews or Gentiles or the church of God. That is the plan I follow, too. I try to please everyone in everything I do. I don't just do what I like or what is best for me, but what is best for them so they may be saved.Lord, may we realize that You've called us to be healthy so that we may better serve each other; not just to build up ourselves.
(1 Corinthians 10:23-33, NLT)
UPDATE (3-17-06): Paul Whiting just posted on the early-Christian dispute over idol worship that precipitated these comments from the Apostle Paul (Paul and the Law 6).