All truths God revealed since the creation of the world, and more, began to fall upon the earth preparing for authority to act in God’s name following the visit of the Father and the Son to Joseph Smith, and Moroni’s visits to introduce The Book of Mormon: Another Testament of Jesus Christ.
The message of restoration held such importance that Moroni repeatedly visited the 17-year-old Joseph prior to showing him the location of the gold plates! Above that, once a year, for four years, did he further instruct Joseph before permitting access to the plates, totaling nine reported meetings--including the meeting at the location of the plates!
Restoring the gospel in the last days to what it was during the Meridian times constitutes a small portion of what God plans for the final scenes of the mortal earth.
Social changes, scientific breakthroughs, medical discoveries, and political firsts changed the world in preparation for the greatest time in human history of knowledge since the days of the City of Enoch or the times of Adam and Eve! The Last Days are greater than these!
Moroni demonstrated to Joseph Smith the sacred nature and importance of passing his charge, the record his father created, into mortal hands again. On the sacrosanct night of September 21, 1823, three years following the visit of Jesus Christ and Heavenly Father to the 14-year-old Joseph Smith, Moroni made his way from the eternal realm to deliver his cherished message of the Gospel.
The everlasting gospel is that Jesus suffered for the sins of mankind so that they could return to heaven if they accept Jesus's atonement. This message is what Moroni delivered revealing that he is the angel mentioned in Revelations having the everlasting gospel to preach for the last time before Christ gathers His people and destroys the wicked by fire.
For centuries, Moroni knew the day would come that he would deliver the message he had been holding sacredly at the command of Jesus Christ--knowing the importance of the message he bore as it was professed by numerous witnesses and prophets.
Remembering with pristine detail the lonely years of his mortal life and losing his father Mormon, who protected the plates of gold, his perfected mind connected to the mortality of his new charge and the glory of overcoming the world and receiving a glorious new physical body incapable of death. What were his feelings then as a perfected being--made so through the atonement of Jesus Christ.
Centuries of preparation the Holy Spirit brought to his remembrance easily as a spirit. As a resurrected being, an eternity stands constantly before him preparing for the Second Advent of Jesus! With revelatory power, the mission of Joseph Smith Junior unfolds before him, on that day came he, brightening the room of the lad with eternal glory. Knowledge that Joseph saw the Father and the Son acutely present, Moroni instructed Joseph Smith Junior that night preparing him for what lay ahead. Calling him by name, Moroni told Joseph that God had a great work for him to do and that all nations, kindreds, tongues, and peoples would bless and curse his name.