Mosiah 11:6

Yea, and thus were they supported in their laziness, and in their idolatry, and in their whoredoms, by the taxes which king Noah had put upon his people; thus did the people labor exceedingly, to support iniquity.

The taxes from Noah’s people paid for these priests to be lazy and worship false gods. The people had to work very hard to pay for all this sin.

The people worked themselves to exhaustion, and their taxes went to support these lazy priests who worshiped idols and slept around.