And if we are going to be holy, we must deal with our sin. This requires repentance. You must repent of sin in order to walk in purity. Remember, repentance means a change of mind. Everywhere that the word repentance is used in Scripture it fundamentally means a change of mind.
Some people believe that repentance means a change in behavior.
It does not. It means a change of mind. Now, that will ultimately result in a change of behavior because when our minds change our behavior will follow. Behavior, however, can be altered to suit a particular situation and not be a reflection of how we truly desire to live. Everyone knows how to be on his or her best behavior when the situation requires it.