1 Corinthians 8:9

Paul is writing to a young church in Corinth, a busy Greek city full of temples. A lot of the meat sold in the market, and much of what was served at dinners and celebrations, had first been offered to one of the city's gods. The Corinthian Christians had written to Paul asking whether a follower of Jesus could eat it, and chapter 8 is his answer.

Some of them already had a confident answer of their own: an idol is nothing and there is only one God, so the food is just food. Paul agrees with that as far as it goes, but he points out that not everyone in the church sees it that way yet. Some had spent their whole lives worshiping those gods, so for them eating that meat still felt like taking part in the old worship, and doing it would leave them feeling they had betrayed Christ.

That is where this verse comes in. Paul tells the confident ones to watch out, because their freedom could become a stumbling block for those he calls "weak," meaning believers whose conscience is still tender and unsure. In the next verse he paints the picture: a newer believer sees a mature Christian eating at a table in an idol's temple, takes that as permission, and goes in too, only to feel he has gone back to the gods he left behind.

The word the translation renders "liberty" is, in the original Greek, closer to "right" or "authority," the kind of thing a person can claim as theirs. Paul grants that the confident Christians are right about idols, and then adds that having a right doesn't settle whether to use it, especially when using it could hurt someone else's faith.

He sums up his own position a few verses later: if food would make his brother fall, he would rather never eat meat again. For Paul, knowledge that ignores the people around it misses the point, and love for a fellow believer weighs more than the freedom to do as he pleases.