Mormon 2:18

And upon the plates of Nephi I did make a full account of all the wickedness and abominations; but upon these plates I did forbear to make a full account of their wickedness and abominations: for behold, a continual scene of wickedness and abominations has been before mine eyes ever since I have been sufficient to behold the ways of man.

On the plates of Nephi, I wrote a full account of all the evil and terrible things. But on these plates, I chose not to write a full account of all the evil and terrible things. This is because I have seen evil and terrible things my whole life since I was old enough to understand people’s ways.

On the plates of Nephi I wrote a full account of all the evil and corruption. But on these plates I’m holding back from writing everything, because I’ve watched nothing but wickedness and depravity my whole life, ever since I was old enough to understand what people do.