SCRIPTURE: “And it came to pass that the Spirit said unto me again: Slay him, for the Lord hath delivered him into thy hands; Behold the Lord slayeth the wicked to bring forth his righteous purposes. It is better that one man should perish than that a nation should dwindle and perish in unbelief. Therefore I did obey the voice of the Spirit, and took Laban by the hair of the head, and I smote off his head with his own sword.” -1 Nephi 4:12, 13, 18. [source]
QUOTE: “Nothing is a greater injury to the children of men than to be under the influence of a false spirit when they think they have the Spirit of God.” -Joseph Smith, Times and Seasons, 1 April 1842. [source]
COMMENTARY: If you say that you did something horrible because God told you that if you didn’t, something even more horrible would happen, and then that exact thing you were trying to prevent happens anyway, maybe you only thought you were being led by the spirit. But what do I know? I’m just another apostate.