Acts 2:17

"And it shall come to pass in the last days, saith God, I will pour out of my Spirit upon all flesh: and your sons and your daughters shall prophesy, and your young men shall see visions, and your old men shall dream dreams:"
Acts 2:17 (KJV)

Context from Acts 2

15

For these are not drunken, as ye suppose, seeing it is but the third hour of the day.

16

But this is that which was spoken by the prophet Joel;

17

And it shall come to pass in the last days, saith God, I will pour out of my Spirit upon all flesh: and your sons and your daughters shall prophesy, and your young men shall see visions, and your old men shall dream dreams:

18

And on my servants and on my handmaidens I will pour out in those days of my Spirit; and they shall prophesy:

19

And I will shew wonders in heaven above, and signs in the earth beneath; blood, and fire, and vapour of smoke: