25. Literally, "I turned myself and mine heart to." A phrase peculiar to Ecclesiastes, and appropriate to the penitent turning back to commune with his heart on his past life.
wickedness of folly—He is now a step further on the path of penitence than in Ec 1:17; 2:12, where "folly" is put without "wickedness" prefixed.
reason—rather, "the right estimation" of things. Holden translates also "foolishness (that is, sinful folly, answering to 'wickedness' in the parallel) of madness" (that is, of man's mad pursuits).