Were the Galatian false teachers preaching a completely different gospel?
No. The Judaizers were not preaching a totally different gospel; they were polluting and corrupting Paul's gospel by adding works. They insisted salvation required faith plus circumcision and keeping the Law of Moses, which is a corruption of the truth.
Les explains that the Galatians were not falling for a totally different Gospel; rather, false teachers were polluting or corrupting Paul's Gospel, like mixing water with wine. Paul's Gospel says you are saved by faith plus nothing. The Judaizers came in saying you cannot be saved that way, but must also practice circumcision and keep the Law of Moses. Les says that is a pollution and corruption of the truth, which is why Paul wrote Galatians to correct their error.
Which is not another; but there be some that trouble you, and would pervert the gospel of Christ.
More Questions
Does Galatians 1:7 mean the false teachers had a completely different gospel or the same gospel corrupted?
In Galatians 1:7 Paul says the Galatians were not falling for a totally different gospel, but some were polluting and corrupting Paul's gospel the way water is mixed with wine.
What were the false teachers in Galatians 1:7 actually preaching?
The message the troublemakers in Galatia brought was not actually another gospel, but a perversion of the Gospel of Christ.
How do false teachers turn the true gospel into another gospel?
Another gospel is produced when teachers use the same things Paul preached but add to it, take from it, or twist it, thereby moving people away from the pure gospel.