Jacob 1

 Jacob defines what seems to be the three major categories of sin - 

"...now it came to pass that the people of Nephi, under the reign of the second king, began to grow hard in their hearts, and indulge themselves somewhat in wicked practices, such as like unto David of old desiring many wives and concubines, and also Solomon, his son.

16 Yea, and they also began to search much gold and silver, and began to be lifted up somewhat in pride."  (Jacob 1:15–16)

Immorality, materialism, and pride.