Deuteronomy 18:18-19
"I will raise them up a Prophet from among their brethren, like unto thee, and will put my words in his mouth; and he shall speak unto them all that I shall command him. And it shall come to pass, that whosoever will not hearken unto my words which he shall speak in my name, I will require it of him."
George Albert Smith
"We are living not only in the day in which [Heavenly Father] has spoken, but we are offered the opportunity to listen to the voices of men who receive His inspiration when they teach us. If therefore we fall into and by forbidden paths we will not be able to blame anybody but ourselves, because if we are teachable, if we are humble, if we are willing to do what the Lord would have us do, we have the information at hand, not only in the records that have been handed down to us by those who have given their lives that we might have the truth, but we also have the privilege of listening to the voices of living oracles . . . There is only one pathway of safety for me in this day and that is to follow those whom the Lord has appointed to lead." (The Teachings of George Albert Smith, p. 68-69).