(Teachings and Commandments) Joseph Smith History 10:11

Verily, verily I say unto you that Satan has great hold upon their hearts; he stirs them up to iniquity against that which is good, and their hearts are corrupt and full of wickedness and abominations, and they love darkness rather than light because their deeds are evil; therefore, they will not ask of me. ... Satan stirs them up that he may lead their souls to destruction. ... Yea, he stirs up their hearts to anger against this work, yea, he says unto them, Deceive and lie in wait to catch that you may destroy; behold this is no harm. ... And thus he goes up and down, to and fro in the earth, seeking to destroy the souls of men.

(Teachings and Commandments) Joseph Smith History 15:29

Behold, the world is ripening in iniquity and it must needs be that the children of men are stirred up unto repentance, both the gentiles and also the house of Israel.

(Teachings and Commandments) Joseph Smith History 10:13

And behold, they will publish this, and Satan will harden the hearts of the people, to stir them up to anger against you that they will not believe my words.

(Teachings and Commandments) Joseph Smith History 10:18

And behold, they shall not deny that which you have received, but they shall build it up and shall bring to light the true points of my doctrine, yea, and the only doctrine which is in me. ... Yea, Satan does stir up the hearts of the people to contention concerning the points of my doctrine, and in these things they do err, for they do wrest the scriptures and do not understand them.

(Teachings and Commandments) Joseph Smith History 1:11

It commenced with the Methodists, but soon became general among all the sects in that region of country — indeed, the whole district of country seemed affected by it, and great multitudes united themselves to the different religious parties, which created no small stir and division among the people, some crying, Lo here, and some, Lo there. ... Some were contending for the Methodist faith, some for the Presbyterian, and some for the Baptist; for notwithstanding the great love which the converts to these different faiths expressed at the time of their conversion, and the great zeal manifested by the respective clergy who were active in getting up and promoting this extraordinary scene of religious feeling in order to have everybody converted, as they were pleased to call it— let them join what sect they pleased; yet when the converts began to file off, some to one party and some to another, it was seen that the seemingly good feelings of both the priests and the converts were more pretended than real.