Sidney Rigdon preaches in the grove. He has begun to oppose Joseph bitterly. However, his daughter, Eliza, whom doctors had pronounced dead, has risen up in bed and said to her elder sister Nancy, "It is in your heart to deny this work; and if you do, the Lord says it will be the damnation of your soul." Because of this miraculous healing, Rigdon announces that rather than denounce the faith and call Joseph a fallen prophet, as many have been saying Rigdon believes, he wants instead to testify to the miracle of God and restate that his faith in Joseph is still strong. The Saints, having heard so many recent negative things about Joseph, are greatly rejuvenated in spirit by Sidney's testimony.
[Source: Conkling, Christopher J., Joseph Smith Chronology]