And the man that ... will not hearken unto the priest ... that man shall die. Deuteronomy 17:12
Trivia: What should you not do to your father's skirt, according to Deuteronomy 22:30?
Love your neighbor as yourself. 6
That's a nice idea, but it isn't original in the D&C. It's copied directly from the Bible.
See Leviticus 19:18.