D&C 88

 I believe that godliness is obedience to eternal laws.  We learn that - 

"...he who is not able to abide the law of a celestial kingdom cannot abide a celestial glory."  (Doctrine and Covenants 88:22)

"...the earth abideth the law of a celestial kingdom, for it filleth the measure of its creation, and transgresseth not the law—"  (Doctrine and Covenants 88:25)

"...again, verily I say unto you, that which is governed by law is also preserved by law and perfected and sanctified by the same."  (Doctrine and Covenants 88:34)

"All kingdoms have a law given..."  (Doctrine and Covenants 88:36)

And so forth.