False Leaders (long article, but worth the read)
MORALLY APOSTATE
1 John 3:4-10 "Whosoever committeth sin transgresseth also the law: for sin is the transgression of the law. And ye know that he was manifested to take away our sins; and in him is no sin. Whosoever abideth in him sinneth not: whosoever sinneth hath not seen him, neither known him. Little children, let no man deceive you: he that doeth righteousness is righteous, even as he is righteous. He that committeth sin is of the devil; for the devil sinneth from the beginning. For this purpose the Son of God was manifested, that he might destroy the works of the devil. Whosoever is born of God doth not commit sin; for his seed remaineth in him: and he cannot sin, because he is born of God. In this the children of God are manifest, and the children of the devil: whosoever doeth not righteousness is not of God, neither he that loveth not his brother."
Committeth and commit are poieo in Greek, meaning to make, to do, to produce, to practice, or to perform.
Jesus told the crowds they would be able to recognize false prophets by their fruit. John points out the fruit of unrighteousness and hatred of the brethren. Does the leader of a denomination hate the members of another denomination? Though true prophets may sin occasionally, they confess and repent of their sins to other brethren. False prophets practice sin and try to hide their sins from those they wish to control. They may use many means to attempt to exclude themselves from the command to "confess sins to one another".
