What does the Bible say about grievous wolves in the church?

The Bible makes clear that grievous wolves represent false teachers who infiltrate the church with the intent to lead believers astray. In Acts 20:29-30, the Apostle Paul warns the elders that after his departure, grievous wolves will enter in among them, not sparing the flock. This reflects a long-standing reality that the natural man is in enmity against God and loves a religion that allows him to be comfortable without true repentance. Such wolves will often appear as part of the flock, deceiving believers with subtlety and false doctrines in order to draw them away from the truth of the gospel.