Ether 13:22

"And it came to pass that Coriantumr repented not, neither his household, neither the people; and the wars ceased not; and they sought to kill Ether, but he fled from before them and hid again in the cavity of the rock."

This is right after Ether prophesies to Coriantumr that if he does not repent his whole civilization will be destroyed except for him. He alone will survive to witness the death of everyone he knows. Coriantumr does not repent, and sadly this prophecy indeed comes to pass.