Polygamist Addam Swapp said God revealed to him Friday - just moments before he was sentenced to 15 years in prison - that he will not actually serve any time in prison and that Americans will be destroyed if they don't repent.

U.S. District Chief Judge Bruce Jenkins gave Swapp the 15-year prison sentence, plus five years probation for his role in the January bombing of an LDS stake center in Marion, Summit County, and a 13-day armed standoff with police that left state Corrections Lt. Fred House dead.Jenkins also sentenced Swapp's mother-in-law, Vickie Singer, to five years in prison and five years probation. She burst into tears and said she never taught her children to try to harm anyone or destroy anything.

Jonathan Swapp and John Timothy Singer were to be sentenced later in the day.

Addam Swapp was defiant as he appeared in court. He told Jenkins that the truth of what happened at Marion will yet be manifest.

"It doesn't matter what happens to me." He said Jesus Christ instructed that when men are brought before magistrates, they don't need to think about what they will say in advance and that the right words will come.

Swapp then said, "Something moves within me very strongly - I need to call the people of the state of Utah to repent." He also called the country to repentance and said, "If they do not, they will be destroyed.

"I know I will be delivered from the court. Whatever your sentence will be today is nothing to me . . . I stand unshaken. In the name of Jesus Christ, Amen."

At that, he walked back from the podium and sat down, but Jenkins directed him to return to the stand for the sentence.

Jenkins and Swapp then discussed laws, and Jenkins said that under the law "basically we ought to leave other people alone."

"I agree," Swapp said. "I wish they would . . . People don't know that I was under siege for two months before the bombing ever happened - that I was being gunned down just like my father-in-law."

That referred to John Singer, a man Swapp never met, who was killed by officers while resisting arrest in 1979.

Vickie Singer was more subdued in court. She said she didn't believe justice was done but thanked God that court-ordered tests said she is not mentally ill. "I just ask you to please release me so I can go home and take care of my family," she said, weeping, to Jenkins.

In an emotional statement, Singer's lawyer Kathryn Collard, said the defendant prayed for people who cast aspersions on her and "even for the people she believed murdered her husband.