“…4–8, The Saints are to befriend the constitutional law of the land; 9–10, Honest, wise, and good men should be supported for secular government…
“And now, verily I say unto you concerning the laws of the land, it is my will that my people should observe to do all things whatsoever I command them.
“And that law of the land which is constitutional, supporting that principle of freedom in maintaining rights and privileges, belongs to all mankind, and is justifiable before me.
“Therefore, I, the Lord, justify you, and your brethren of my church, in befriending that law which is the constitutional law of the land;
“And as pertaining to law of man, whatsoever is more or less than this, cometh of evil.
“I, the Lord God, make you free, therefore ye are free indeed; and the law also maketh you free.
“Nevertheless, when the wicked rule the people mourn.
“Wherefore, honest men and wise men should be sought for diligently, and good men and wise men ye should observe to uphold; otherwise whatsoever is less than these cometh of evil.”
Original Source
Doctrine and Covenants 98:4-10
Revelation given through Joseph Smith the Prophet, at Kirtland, Ohio, August 6, 1833
https://www.lds.org/scriptures/dc-testament/dc/98.4-10?lang=eng#4
Accessed 29/12/2015