Ecclesiastes 1:17
And I gave my heart to know wisdom, and to know madness and folly: I perceived that this also is vexation of spirit.
Cross-references
In Ecclesiastes 1:13, this pursuit of wisdom is described as a burdensome task from God, framing the futile effort to understand madness and folly.
Ecclesiastes 1:14 already declared all works vanity and striving after wind — the same refrain that 1:17 applies to the pursuit of wisdom and folly.
In Ecclesiastes 2:11, this same 'striving after wind' verdict applies to labor, extending the futility discovered in seeking wisdom.
In Ecclesiastes 2:12, the comparison of wisdom and madness continues, concluding that nothing new can be added to what Solomon already did.
In Ecclesiastes 7:23-25, the same pursuit of wisdom is deemed beyond reach, revealing the limit of human understanding after earlier attempts.
In Ecclesiastes 2:3, the speaker tests wine and folly while guided by wisdom, expanding on the experimentation with madness and folly.