Ether 12:5

And it came to pass that Ether did prophesy great and marvellous things unto the people, which they did not believe, because they saw them not.

Ether prophesied great and amazing things to the people. But they did not believe him because they could not see these things.

Ether prophesied incredible things to the people, but they didn’t believe him because they couldn’t see what he described.