After boiling it all down, there are really only two spiritual doctrines on the earth today: the doctrine of Christ that was adopted by His apostles and the doctrine of His arch-enemy Satan.  After receiving our initial salvation, we are told to purge out the old leaven, the old erroneous teachings about God passed down by friends, family, and the churches. This getting rid of old concepts is an important part of the first apostles’ doctrine, repentance from dead works. But what is the “old leaven”? And where did it come from?

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