The Messenger who thus conferred the Aaronic priesthood upon them was named John, the same that is called the Baptist in the New Testament. He had been raised from the dead, and was now sent as a messenger from God to confer the keys of the Aaronic priesthood upon Joseph Smith and Oliver Cowdery. He told them that he acted under the direction of the apostles Peter, James and John, and that some time in the near future the Melchisedek or higher priesthood would be conferred upon them. He then commanded them to each baptize the other, Joseph to first baptize Oliver, and then Oliver to baptize Joseph. Thus the work of baptizing men for the remission of sins began in the new dispensation. Some time in the following month, June, 1829, the promise made by John to Joseph and Oliver that the Melchisedek Priesthood would be conferred upon them was fulfilled. In the wilderness between Harmony, Susquehanna County, Penn., and Colesville, Broom County, New York, on the banks of the Susquehanna River, Peter, James and John conferred upon Joseph Smith and Oliver Cowdery the apostleship, the keys of the Melchisedek Priesthood, which gave them the right to build up the church of Christ in all the world, and organize it in all its departments. It is proper here to say a few words upon the subject of priesthood. Priesthood is power which God confers upon man, by which he becomes an agent for God, authorized to act in his name. It may be to warn a city or nation of approaching calamity because of corruption; it may be to teach faith in God, or cry repentance to the wicked; it may be to baptize in water for the remission of sins, or lay on hands, as the ancient apostles did, for the baptism of the Holy Ghost; or it may be to lay on hands for the healing of the sick, or all these things combined. Men who hold the priesthood possess divine authority thus to act for God; and by possessing part of God's power they are in reality part of God, that is, in the sense of being part of the great governing power that extends throughout the universe. This is the authority of men that hold the priesthood, and when those who possess it walk in obedience to the commandments of God, men who honor the priesthood in them, honor God; and those who reject it reject God, even the power of God. It was doubtless these considerations which led Jesus to say, when sending out his apostles to preach the gospel: "He that receiveth you, receiveth me; and he that receiveth me, receiveth him that sent me. * * * And whosoever shall not receive you, nor hear your words when ye depart out of that house or city, shake off the dust of your feet. Verily I say unto you, it shall be more tolerable for the land of Sodom and Gomorrah in the day of judgment, than for that city." [7]