I believe this verse states that we cannot. 1 John 2 1My little children, these things write I unto you, that ye sin not. And if any man sin, we have an advocate with the Father, Jesus Christ the righteous: There is something very wonderful in this verse which we should not overlook . "And if anyone sins , we have an advocate with the father " It does not say with GOD , but rather with the FATHER. He is still our father even if we sin . This reminds us of the blessed truth that though sin in a believers life breaks fellowship , it does not break relationship . When a person is born again , he becomes a child of god . god is henceforth his father , and NOTHING can ever affect that relationship . A birth is something that can never be undone . A son may disgrace his father , but he still son by fact of BIRTH . Notice that our advocate is Jesus Christ the righteous. It is good to have a righteous defender . when satan brings accusations against a believer , the lord Jesus can point to his finished work on calvary and say , "Charge that to my account " .