Article 12.

We believe that a man must be called of God by revelation, and ordained by those having authority, to enable him to preach the gospel and administer the ordinances thereof.

A person cannot call himself into an office of the ministry. God chose the people that he wants in the ministry of the church. We can prepare ourselves for a calling, but until God calls us into the ministry be revelation or by the messenger, we cannot take the office. Both the Apostles and Bishops must be called though Messenger. For further study read Mathew 4:18-22, Mathew 9:11-15, Acts 9:1-18, Galatians 1:12 Alma 8:24.