"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 ”
Second President Brigham Young once remarked, "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). ”
"He (Joseph Smith) is the man through whom God has spoken... yet I would not like to call him a savior, though in a certain capacity he was a god to us, and is to the nations of the earth, and will continue to be." - Brigham Young, Journal of Discourses 8:321 ”
"You call us fools; but the day will be, gentlemen and ladies, whether you belong to this Church or not, when you will prize brother Joseph Smith as the Prophet of the Living God, and look upon him as a god..." - Herber C. Kimball, Journal of Discourses 5:88 ”
"If we get our salvation, we shall have to pass by him [Joseph Smith]; if we enter our glory, it will be through the authority he has received. We cannot get around him [Joseph Smith]" - (as quoted in 1988 Melchizedek Priesthood Study Guide, p. 142) ”
There is "no salvation without accepting Joseph Smith. If Joseph Smith was verily a prophet, and if he told the truth...no man can reject that testimony without incurring the most dreadful consequences, for he cannot enter the kingdom of God" - Joseph Fielding Smith, Doctrines of Salvation, vol. 1, p.190 ”
"I tell you, Joseph holds the keys, and none of us can get into the celestial kingdom without passing by him. We have not got rid of him, but he stands there as the sentinel, holding the keys of the kingdom of God; and there are many of them beside him. I tell you, if we get past those who have mingled with us, and know us best, and have a right to know us best, probably we can pass all other sentinels as far as it is necessary, or as far as we may desire. But I tell you, the pinch will be with those that have mingled with us, stood next to us, weighed our spirits, tried us, and proven us: there will be a pinch, in my view, to get past them. The others, perhaps, will say, If brother Joseph is satisfied with you, you may pass. If it is all right with him, it is all right with me. Then if Joseph shall say to a man, or if brother Brigham say to a man, I forgive you your sins, "Whosoever sins ye remit they are remitted unto them;" if you who have suffered and felt the weight of transgression—if you have generosity enough to forgive the sinner, I will forgive him: you cannot have more generosity than I have. I have given you power to forgive sins, and when the Lord gives a gift, he does not take it back again." - Orson Hyde, Journal of Discourses, Vol. 6, p.154-155 ”
...to get by Joseph Smith... ”
"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?" Brigham Young --JOURNAL OF DISCOURSES, vol. 8, p. 224