D&C 88:63-65
“No man can receive the Holy Ghost without receiving revelations. The Holy Ghost is a revelator.” (Teachings of the Prophet Joseph Smith, p. 328)
“Three manifestations of the gift of ‘speaking in tongues’ are evident in God’s dealings with his children: (1) speaking the pure Adamic language (Moses 6:6, 46; Orson Pratt, Journal of Discourses 3:99-103; HC 1:297); (2) speaking a foreign but known tongue (Acts 2:2, 4-6; and (3) speaking by the power of the Holy Ghost.” (R. Millet and J. McConkie, Doctrinal Commentary on The Book of Mormon, 1:369-370)