NET

25 I tried to understand, examine, and comprehend the role of wisdom in the scheme of things, and to understand the stupidity of wickedness and the insanity of folly.

Darby

True Righteousness and Wisdom are Hard to Find

25 I turned, I and my heart, to know, and to search, and to seek out wisdom and reason^D4525, and to know wickedness to be folly, and foolishness to be madness^D4526;

Darby Bible Notes

reason - Or 'thought.' translated 'device' in ch. 9.10. madness - Or 'the wickedness of folly, and the foolishness of madness.'

KJV

True Righteousness and Wisdom are Hard to Find

25 I applied mine heart^K4434to know, and to search, and to seek out wisdom, and the reason [of things], and to know the wickedness of folly, even of foolishness [and] madness:

KJV Bible Notes

I applied mine heart: Heb. I and mine heart compassed.