“The exaltation to the celestial kingdom is so great that the Father is fully justified in making it dependent upon strict obedience to all of his commandments. The celestial kingdom is a kingdom of perfection. All who enter there must be thoroughly tried and proved and become perfect to inherit it. The Lord has said that through their obedience those who enter must be sanctified from all unrighteousness. Every law governing it must be obeyed. There can be no opposition to divine law, nor could anyone receiving this reward have any desire to change or disagree with anything prevailing there, for these laws are perfect” (Smith, Man, His Origin and Destiny, 532).