Exodus 33

As Mormon abridges the records, he comments -

"...thus we see that except the Lord doth chasten his people with many afflictions, yea, except he doth visit them with death and with terror, and with famine and with all manner of pestilence, they will not remember him.
4 O how foolish, and how vain, and how evil, and devilish, and how quick to do iniquity, and how slow to do good, are the children of men; yea, how quick to hearken unto the words of the evil one, and to set their hearts upon the vain things of the world!
5 Yea, how quick to be lifted up in pride; yea, how quick to boast, and do all manner of that which is iniquity; and how slow are they to remember the Lord their God, and to give ear unto his counsels, yea, how slow to walk in wisdom's paths!
6 Behold, they do not desire that the Lord their God, who hath created them, should rule and reign over them; notwithstanding his great goodness and his mercy towards them, they do set at naught his counsels, and they will not that he should be their guide." (Book of Mormon | Helaman 12:3 - 6)

Probably one of the most disturbing examples in all of scripture of a people that are "quick to do iniquity" is the record of the children of Israel and the golden calf. One cannot read this story without marveling how quick these people were to do iniquity. Even so, we see this many times in our day. Just a short time before that Moses -

"...told the people all the words of the LORD, and all the judgments: and all the people answered with one voice, and said, All the words which the LORD hath said will we do." (Old Testament | Exodus 24:3)

And in such a short time, they violated there covenants. The Lord told Noah -

"...My spirit shall not always strive with man..." (Old Testament | Genesis 6:3)

And so are His covenants and promises. As a consequence to their inability to keep their covenants -

"...the Lord said unto Moses, Hew thee two other tables of stone, like unto the first, and I will write upon them also, the words of the law, according as they were written at the first on the tables which thou brakest; but it shall not be according to the first, for I will take away the priesthood out of their midst; therefore my holy order, and the ordinances thereof, shall not go before them; for my presence shall not go up in their midst, lest I destroy them.
2. But I will give unto them the law as at the first, but it shall be after the law of a carnal commandment; for I have sworn in my wrath, that they shall not enter into my presence, into my rest, in the days of their pilgrimage." (JST | Exodus 34:1 - 2)