27 If someone who isn't a believer asks you home for dinner, accept the invitation if you want to. Eat whatever is offered to you without raising questions of conscience. 28 (But suppose someone tells you, "This meat was offered to an idol." Don't eat it, out of consideration for the conscience of the one who told you. 29 It might not be a matter of conscience for you, but it is for the other person.) For why should my freedom be limited by what someone else thinks? 30 If I can thank God for the food and enjoy it, why should I be condemned for eating it?
Matthew Henry's Commentary on 1 Corinthians 10:27-30
Commentary on 1 Corinthians 10:23-33
(Read 1 Corinthians 10:23-33)
There were cases wherein Christians might eat what had been offered to idols, without sin. Such as when the flesh was sold in the market as common food, for the priest to whom it had been given. But a Christian must not merely consider what is lawful, but what is expedient, and to edify others. Christianity by no means forbids the common offices of kindness, or allows uncourteous behaviour to any, however they may differ from us in religious sentiments or practices. But this is not to be understood of religious festivals, partaking in idolatrous worship. According to this advice of the apostle, Christians should take care not to use their liberty to the hurt of others, or to their own reproach. In eating and drinking, and in all we do, we should aim at the glory of God, at pleasing and honouring him. This is the great end of all religion, and directs us where express rules are wanting. A holy, peaceable, and benevolent spirit, will disarm the greatest enemies.