"Surely the Lord GOD will do nothing, but he revealeth his secret unto his servants the prophets."
Amos 3:7 (KJV)

For God speaketh once, yea twice, yet man perceiveth it not. In a dream, in a vision of the night, when deep sleep falleth upon men, in slumberings upon the bed;

Then he openeth the ears of men, and sealeth their instruction,
Job 33:14-16 (KJV)

And it shall come to pass afterward, that I will pour out my spirit on all flesh; and your sons and your daughters shall prophesy, your old men shall dream dreams, your young men shall see visions:
Joel 2:28 (KJV)

"But I will shew thee that which is noted in the scripture of truth..."
Daniel 10:21a (KJV)

"...yet shall not thy teachers be removed into a corner any more, but thine eyes shall see thy teachers:"
Isaiah 30:20 (KJV)

"So they read in the book in the law of God distinctly, and gave the sense, and caused them to understand the reading."
Nehemiah 8:8 (KJV)

"And they that understand among the people shall instruct many..."
Daniel 11:33 (KJV)