"I know that Joseph Smith is a Prophet of God, that this is the Gospel of salvation, and if you do not believe it you will be damned, every one of you"
(Journal of Discourses 4:298, March 29, 1857).
On October 9, 1859, Young said,
"From the day that the Priesthood was taken from the earth to the winding-up scene of all things, every man and woman must have the certificate of Joseph Smith, junior, as a passport to their entrance into the mansion where God and Christ are -- I with you and you with me. I cannot go there without his consent"
(Journal of Discourses 7:289).
They succeeded in killing Joseph, but he had finished his work.He was a servant of God, and gave us the Book of Mormon.He said the Bible was right in the main, but, through the translators and others, many precious portions were suppressed, and several other portions were wrongly translated; and now his testimony is in force, for he has sealed it with his blood.As I have frequently told them, no man in this dispensation will enter the courts of heaven, without the approbation of the Prophet Joseph Smith, Jun.Who has made this so?Have I?Have this people?Have the world?No; but the Lord Jehovah has decreed it.If I ever pass into the heavenly courts, it will be by the consent of the Prophet Joseph.If you ever pass through the gates into the Holy City, you will do so upon his certificate that you are worthy to pass.Can you pass without his inspection?No; neither can any person in this dispensation, which is the dispensation of the fulness of times.In this generation, and in all the generations that are to come, everyone will have to undergo the scrutiny of this Prophet.They say that they killed Joseph, and they will yet come with their hats under their arms and bend to him; but what good will it do them, unless they repent?They can come in a certain way and find favor, but will they?
"If I ever pass into heavenly courts, it will be by the consent of Prophet Joseph"
--Brigham Young
--JOURNAL OF DISCOURSES, vol. 8, p. 224
It sounds like something that can be changed by Latter Day Prophesy. Hence, the LD in LDS.
You folks are always shooting at a moving target.