About a month after beginning work, Joseph translated from the plates a passage that spoke of baptism. It said that it is necessary to be baptized in order that a person's sins may be washed away and forgiven. Neither Joseph nor Oliver had been forgiven of past sins by baptism, and after talking over the matter earnestly, on the fifteenth of May, 1829, they went into the woods to pray for light. While they were kneeling a voice from the midst of heaven bade them have peace, then the veil parted and John the Baptist came down before them. This is the same brave prophet who preached repentance and the coming of the Savior, in the wilderness of Judea and baptized Him in Jordan. John was beheaded while in prison by Herod, but now he came quickened and clothed with glory.
He calmed them with his gentle yet thrilling voice, telling them he was their fellow-servant and acting under the direction of Peter, James and John. He laid his hands upon their heads and ordained them to the Aaronic Priesthood, which he represented in life. His words were:
"Upon you my fellow servants, in the name of Messiah, I confer the priesthood of Aaron, which holds the keys of the ministering of angels and of the gospel of repentance and of baptism by immersion for the remission of sins; and this shall never again be taken from the earth until the sons of Levi do offer again an offering unto the Lord in righteousness."
John then directed Joseph to baptize Oliver and that Oliver should baptize Joseph; after this in the same way they should ordain each other to the Aaronic Priesthood. He said that they must not lay on hands for the gift of the Holy Ghost as that was not the power of the Priesthood of Aaron. Later the Melchizedek Priesthood would be given them and then they could lay on hands and perform other holy offices.
There was a river nearby and Joseph and Oliver went into it together, prepared to perform the sacred ordinance. It was a strange sight on earth, and no doubt the hosts of heaven were glad, for since the righteous Nephites no man had been cleansed from sin in the waters of baptism. Joseph seriously spoke the simple words of the ordinance and then laid Oliver beneath the water. As he drew him up, suddenly the spirit of prophecy came upon Oliver. He was filled with joy and foretold glorious things that were about to come to pass. Oliver then baptized Joseph and the Holy Spirit fell in a like manner upon him. He prophesied concerning the rise of the Church and of its progress, and declared many things that were to happen in that generation.
Filled with these exalted feelings, Joseph laid his hands upon Oliver's head and ordained him a Priest after the order of Aaron, and Oliver did the same to Joseph. They already held the Priesthood, because that was given by John, but they re-ordained each other as a pattern for others, since the Priesthood was to be conferred in the future after baptism.
From this time on the minds of the young men were enlightened and they understood things that had been mysteries before. Persecution had begun, and for a time they said nothing about what had taken place; but soon they began explaining the scriptures to all who would listen.
Joseph's brother Samuel, who came on a visit at this time, was shown the translation already made, and heard the testimony of Joseph and Oliver. After a time he became partially converted and went alone to pray and learn from the Lord whether the work was true. A strong testimony was given him, and soon after Oliver baptized him. On coming out of the water he too began to prophesy remarkable things, as Oliver and Joseph had done. Samuel returned home and Hyrum came to Harmony. He heard the truth and believed.
A very kind service was done the Prophet at this time by Joseph Knight, an old gentleman living in Broome County, New York. Now and at other times, he brought a load of provisions in order that Joseph and Oliver might keep on translating. But though supplied with food and protected from violence by the family of Isaac Hale, still persecution grew very severe against them and it seemed necessary to move from Harmony, if they wished to work in peace.