The leader of the Fundamentalist Church of Jesus Christ of Latter-day Saints faces a maximum sentence of life in prison on his conviction of sexually assaulting a 12-year-old and a 15-year-old who were his "spiritual wives."

Jeffs' nephew, Brent Jeffs, was one of several witnesses who testified Saturday. He told jurors that his uncle raped him when he was 5 years old.

"This is between me, you and God," he said Jeffs told him.

Jurors  heard audio recordings that prosecutors said showed Jeffs instructing a 14-year-old and his other young "wives" on how to sexually please him in order to win God's favor.

Jeffs' breakaway sect is believed to have about 10,000 followers. Their practice of polygamy, which the mainstream Mormon Church renounced more than a century ago, is part of the sect's doctrine.