Page "President of the Church" Paragraph 22

Counselors are formally designated as " First Counselor in the First Presidency " and " Second Counselor in the First Presidency " based on the order they were selected by the president.

Additional counselors have been designated in different ways, including " Third Counselor in the First Presidency " ( e. g., Hugh B.

Brown ), " Assistant Counselor to the President " ( e. g., John Willard Young ), and simply " Counselor in the First Presidency " ( e. g., Thorpe B. Isaacson ).

The president and all his counselors constitute the First Presidency, which is the presiding quorum of the church.

The next senior apostle to the president of the church is set apart by the president to be the President of the Quorum of the Twelve Apostles.