"Is there a single ordinance to be dispensed with? Is there one of the commandments that God has enjoined upon the people, that he will excuse them from obeying? Not one, no matter how trifling or small in our own estimation. No matter if we esteem them non-essential, or least or last of all the commandments of the house of God, we are under obligation to observe them."
"Why have they wandered so far from the path of truth and rectitude? Because they left the Priesthood and have had no guide, no leader, no means of finding out what is true and what is not true. It is said the Priesthood was taken from the Church, but it is not so, the Church went from the Priesthood and continued to travel in the wilderness, turned from the commandments of the Lord, and instituted other ordinances."
"If the candle of the Almighty does not shine from this place, you need not seek for light anywhere else."
"To know the truth of my testimony he must have the visions and revelations of God for himself. And when he gets them, and turns aside becoming a traitor to the cause of righteousness, the wrath of God will beat upon him, and the vengeance of the Almighty will be heavy upon him."
"He will make false prophecies, yet he will do it by the spirit of prophecy; he will feel that he is a prophet and can prophesy, but he does it by another spirit and power than that which was given him of the Lord. He uses the gift as much as you and I use ours."
Discourses of Brigham Young pgs 82, 107, and 221.