3 Nephi 6:10

But it came to pass in the twenty and ninth year, there began to be some disputings among the people; and some were lifted up unto pride and boastings, because of their exceeding great riches, yea, even unto great persecutions:

But in the 29th year, the people started to argue. Some people became proud and bragged because they were very rich. They treated others badly.

But in the twenty-ninth year, arguments began breaking out. Some people became proud and arrogant because of their enormous wealth, and they started persecuting others.