2 Esdras 14:47

47 For in them is the spring of understanding, the fountain of wisdom, and the stream of knowledge.

2 Esdras 14:47 In-Context

45 And it came to pass, when the forty days were filled, that the Highest spake, saying, The first that thou hast written publish openly, that the worthy and unworthy may read it:
46 But keep the seventy last, that thou mayest deliver them only to such as be wise among the people:
47 For in them is the spring of understanding, the fountain of wisdom, and the stream of knowledge.
48 And I did so.
The King James Version is in the public domain.