1 Corinthians 3:15

Is burnt up. If the disciples he has taught are unfaithful when persecuted, he will lose his reward (see 1 Corinthians 3:14). But he himself will be saved. This seems to imply the false teacher was sincere in his efforts, even though he was not properly preparing the disciples which he taught. Escaped through the fire. As a man who runs out of a burning house, losing everything but his own life.