It is better for you to lose one part of your body than for your whole body to be thrown into hell.
Without proper understanding, this truth of the Lord Jesus can be confused, resulting in some extremely dangerous thinking: “If I purge myself of unholy influences, I will become holy.”
Throughout the years this thinking has been central to various movements ranging from the home-schoolers to the KKK. This mindset has led to numerous church splits, divorces, cults and other segregational endeavors.
Although it is important to realize that each one of us is responsible to do whatever we can to avoid sin, we must also recognize that no matter how many sinful appendages we remove from ourselves, we still carry around our own sinful heart. Perhaps the virtue of separating ourselves from evil is not that we will become righteous, but rather that we may learn that we cannot help ourselves and need a Savior.