Now, it is better that a man should be judged of God than of man, for the judgments of God are always just, but the judgments of man are not always just.
Therefore, if it were possible that you could have just men to be your kings, who would establish the laws of God, and judge this people according to his commandments, yea, if ye could have men for your kings who would do even as my father Benjamin did for this people—I say unto you, if this could always be the case then it would be expedient that ye should always have kings to rule over you . . . .
Now I say unto you, that because all men are not just it is not expedient that ye should have a king or kings to rule over you. For behold, how much iniquity doth one wicked king cause to be committed, yea, and what great destruction!
Yea, remember king Noah, his wickedness and his abominations, and also the wickedness and abominations of his people. Behold what great destruction did come upon them; and also because of their iniquities they were brought into bondage….
And behold, now I say unto you, ye cannot dethrone an iniquitous king save it be through much contention, and the shedding of much blood. For behold, he has his friends in iniquity, and he keepeth his guards about him; and he teareth up the laws of those who have reigned in righteousness before him; and he trampleth under his feet the commandments of God;
And he enacteth laws, and sendeth them forth among his people, yea, laws after the manner of his own wickedness; and whosoever doth not obey his laws he causeth to be destroyed; and whosoever doth rebel against him he will send his armies against them to war, and if he can he will destroy them; and thus an unrighteous king doth pervert the ways of all righteousness.
And now behold I say unto you, it is not expedient that such abominations should come upon you.
Therefore, choose you by the avoice of this people, judges, that ye may be bjudged according to the claws which have been given you by our fathers, which are correct, and which were given them by the hand of the Lord.
Source: Mosiah 29: 12-25, The Book of Mormon: Another Testament of Jesus Christ.