Behold, verily I say unto you, that there are many spirits which are false spirits, which have gone forth in the earth, deceiving the world. And also Satan has sought to deceive you, that he might overthrow you. Behold, I, the Lord, have looked upon you, and have seen abominations in the church that profess my name … . Wherefore, let every man beware lest he do that which is not in truth and righteousness before me. (D&C 50:2-4, 9.)