=20. Seventies= are traveling ministers, ordained to promulgate the Gospel among the nations of the earth, "unto the Gentiles first, and also unto the Jews." They are to act under the direction of the Apostles in this exalted labor.[639] A full quorum comprises seventy members, including seven presidents. [639] Doc. and Cov. cvii, 34-35, 97-98. =21. High Priests= are ordained with power to officiate when properly directed in all the ordinances and blessings of the Church. They may travel as do the Seventies, carrying the Gospel to the nations; but they are not specially charged with this duty, their specific calling being that of standing presidency. The High Priests of any stake of the Church may be organized into a quorum, and this without limit as to number; over such a quorum, three of the members may be chosen to preside, as president and counselors.[640] [640] Doc. and Cov. cvii, 10; cxxiv, 134-135. =22. Patriarchs=, or =Evangelists=, are charged with the special duty of blessing the Church; of course they have authority to officiate also in other ordinances. There is one "Patriarch to the Church," with general jurisdiction throughout the whole organization; he holds the keys of the patriarchal office, and unto him the promise is given "that whoever he blesses shall be blessed, and whoever he curses shall be cursed, that whatsoever he shall bind on earth shall be bound in heaven, and whatsoever he shall loose on earth shall be loosed in heaven."[641] [641] Doc. and Cov. cxxiv, 92-93. =23.= Concerning the patriarchal authority, the Lord has said: "The order of this priesthood was confirmed to be handed down from father to son, and rightly belongs to the literal descendants of the chosen seed to whom the promises were made. This order was instituted in the days of Adam, and came down by lineage."[642] But, beside this office of general patriarchal power, there are a number of local Patriarchs appointed in the branches of the Church, all subject to counsel and direction at the hands of the "Patriarch to the Church;" yet possessing the same privileges in their district as belong to him throughout the Church. It is made a duty of the Twelve Apostles to ordain evangelical ministers, or Patriarchs, in all large branches of the Church, the selection to be made through the power of revelation.[643] [642] Doc. and Cov. cvii, 40-57. [643] Doc. and Cov. cvii, 39. =24. Apostles= are called to be special witnesses of the name of Christ in all the world;[644] they are empowered to build up and organize the branches of the Church; and may officiate in any or all of the sacred ordinances. They are to travel among the Saints, regulating the affairs of the Church wherever they go, but particularly where there is no complete local organization. They are authorized to ordain Patriarchs and other officers in the priesthood, as they may be directed by the Spirit of God.[645] [644] Doc. and Cov. cvii, 23.