Joseph Smith

“When Elisha saw the chariots of Israel and the horsemen thereof, it was unknown to others. When the Lord appeared to Abraham it was at his tent door; when the angels went to Lot, no person knew them but himself, which was the case probably with Abraham and his wife; when the Lord appeared to Moses, it was in the burning bush, in the tabernacle, or in the mountain top; when Elijah was taken in a chariot of fire, it was unobserved by the world; and when he was in a cleft of a rock, there was loud thunder, but the Lord was not in the thunder; there was an earthquake, but the Lord was not in the earthquake; and then there was a still small voice” (Teachings of Presidents of the Church: Joseph Smith, p. 121-122).