The Descent of the Holy Spirit

“And when the day of Pentecost was fully come, they were all with one accord in one place. And suddenly there came a sound from heaven as of a rushing mighty wind, and it filled all the house where they were sitting. And there appeared unto them cloven tongues like as of fire, and it sat upon each of them. And they were all filled with the Holy Ghost, and began to speak with other tongues, as the Spirit gave them utterance.” The Holy Ghost, assuming the form of tongues of fire divided at the tips, and resting upon those assembled, was an emblem of the gift which was bestowed upon them of speaking with fluency several different languages, with which they had formerly been unacquainted. And the appearance of fire signified the fervent zeal with which they would labor and the power which would attend their words.SR 242.1

Under this heavenly illumination the scriptures which Christ had explained to them stood forth in their minds with the vivid luster and loveliness of clear and powerful truth. The veil which had prevented them from seeing the end of that which was abolished was now removed, and the object of Christ's mission and the nature of His kingdom were comprehended with perfect clearness.SR 242.2