A "revelation" in June, 1829 (Sec. 18), had directed the appointment of the twelve apostles, whom Cowdery and David Whitmer were to select. The organized members now began to inquire who was their leader, and Smith, in a "revelation" dated April 6, 1830 (Sec. 21), addressed to himself, announced: "Behold there shall be a record kept among you, and in it thou shalt be called a seer, a translator, a prophet, an apostle of Jesus Christ, an elder of the church through the will of God the Father, and the grace of your Lord Jesus Christ"; and the church was directed in these words, "For his word ye shall receive, as if from mine own mouth, in all patience and faith." Thus was established an authority which Smith defended until the day of his death, and before which all who questioned it went down. Some of the few persons who at this time expressed a willingness to join the new church showed a repugnance to being baptized at his hands, and pleaded previous baptism as an excuse for evading it. But Smith's tyrannical power manifested itself at once, and he straightway announced a "revelation" (Sec. 22), in which the Lord declared, "All old covenants have I caused to be done away in this thing, and this is a new and everlasting covenant, even that which was from the beginning." Five days after the formal organization, the first sermon to the Mormon church was preached in the Whitmer house by Oliver Cowdery, Smith probably concluding that it would be wiser to confine himself to the receipt of "revelations" rather than to essay pulpit oratory too soon. Six additional persons were then baptized. Soon after this the first Mormon miracle was performed--the casting out of a devil from a young man named, Newel Knight. The first conference of the organized church was held at Fayette, New York, in June, 1830, with about thirty members present. In recent "revelations" the prophet had informed his father and his brothers Hyrum and Samuel that their calling was "to exhortation and to strengthen the church," so that they were provided for in the new fold. The region in New York State where the Smiths had lived and were well known was not favorable ground for their labors as church officers, conducting baptisms and administering the sacrament. When they dammed a small stream in order to secure a pool for an announced baptism, the dam was destroyed during the night. A Presbyterian sister-in-law of Knight, from whom a devil had been cast, announced her conversion to Smith's church, and, when she would not listen to the persuasions of her pastor, the latter obtained legal authority from her parents and carried her away by force. She succeeded, however, in securing the wished-for baptism. All this stirred up public feeling against Smith, and he was arrested on a charge of disorderly conduct.