Daniel 12:4:

But thou, O Daniel, shut up the words, and seal the book, even to the time of the end: many shall run to and fro, and knowledge shall be increased.

See also:

Healing and the Last Days
Does Scripture Promise a Mighty Worldwide End-Time Revival?
Objection: Wesley Said, “Whatever Is True Is Not New, and Whatever Is New Is Not True.”  Nobody Believed That Healing Was in the Atonement Until Recently, So It Is Not True.