12 The Twelve are a traveling, presiding high council, to officiate in the name of the Lord, under the direction of the Presidency of the church, agreeably to the institution of heaven, to build up the church and regulate all the affairs of the same, in all nations; first unto the Gentiles, and secondly unto the Jews.
13a The Seventy are to act in the name of the Lord, under the direction of the Twelve, or the traveling high council, in building up the church, and regulating all the affairs of the same, in all nations; first unto the Gentiles, and then to the Jews;
13b the Twelve being sent out, holding the keys to open the door by the proclamation of the gospel of Jesus Christ; and first unto the Gentiles, and then unto the Jews.
14 The standing high councils, at the stakes of Zion, form a quorum equal in authority, in the affairs of the church, in all their decisions, to the quorum of the Presidency or to the traveling high council.
15 The high council in Zion forms a quorum equal in authority, in the affairs of the church, in all their decisions, to the councils of the twelve at the stakes of Zion.
16 It is the duty of the traveling high council to call upon the Seventy, when they need assistance, to fill the several calls for preaching and administering the gospel, instead of any others.
17 It is the duty of the Twelve, in all large branches of the church, to ordain evangelical ministers, as they shall be designated unto them by revelation.
18 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 in the following manner:
19a From Adam to Seth, who was ordained by Adam at the age of sixty-nine years, and was blessed by him three years previous to his (Adam's) death, and received the promise of God by his father, that his posterity should be the chosen of the Lord,
19b and that they should be preserved unto the end of the earth, because he (Seth) was a perfect man, and his likeness was the express likeness of his father, insomuch that he seemed to be like unto his father in all things; and could be distinguished from him only by his age.
20 Enos was ordained at the age of one hundred and thirty-four years, and four months, by the hand of Adam.